WANWU EXOSKELETON Series Guide:
The Magnetic Fidget Slider That Beats Like a Heart

The WANWU EXOSKELETON is a modular magnetic-mechanical fidget slider with a heartbeat dual engine. A full guide to every material, the mechanism, the identity system, and how to choose.

The WANWU EXOSKELETON is a modular magnetic-mechanical fidget slider. One push fires two staged pulses through a steel exoskeleton built around a ribcage, a spine, and a reactor heart, and the rhythm is deliberate: it beats like a heart.

Most sliders give you one click and one feel. The EXOSKELETON gives you a two-stage magnetic and mechanical pulse, and the core, the track, and the material are all swappable. One piece is really a platform, and that platform has carried a wide spread: the same chassis has shipped as a 16g self-lubricating polymer and as a four-piece superconductor run, with a dozen editions in between.

The EXOSKELETON is WANWU STUDIO’s take on the fidget slider, designed by Haina. The maker calls it a composite slider, and that is the honest label: it is a push-slider whose feedback is built from magnets and mechanics together.

The name is literal. The body reads as a skeleton, a ribcage and a spine wrapped around a reactor heart, and the design plays on the line between an organic body and a machine.

It is not a spinner and it is not a haptic coin. You push the slider, it travels, and the structure answers with a staged response you can feel and hear.

The headline feel is a true dual engine. In the default slider mode the first five stages are mechanical vibration while the magnetic slider’s soft bounce keeps building under your thumb.

On the sixth stage the slider crosses the base magnet’s repulsion point and lands its first impact, vibrating in the middle of the push block. Then seven more stages of mechanical vibration carry it across a second repulsion point, where the magnetic slider ejects and strikes the inner wall a second time.

Two bursts, two contractions, one heartbeat. That second-impact rhythm is the whole reason the piece is named after an exoskeleton wrapped around a heart.

There is a second mode too. In Buckyball mode you swap the 6mm magnetic Buckyball and the track, the ball and the mechanical track alternate sounding, and the piece ships with seven tracks (segmented, dense, side-to-side) so you can build the feel and the sound you want.

A separate tuning-fork core is the quiet favorite. Tap it and it gives a clear, bright, lingering tone, a clean chime that rings out and fades. It is an optional core rather than the standard fit, which is exactly why collectors hunt it.

WANWU ships the parts diagram with the piece, so the internals are documented rather than hidden. The slider magnets are 6 by 2mm N35, set two at each point, and the shell carries a single 6 by 3mm N52 magnet in the middle.

The motion hardware is small and specific. Two springs at 0.25 by 2.9 by 4.5mm drive the return, white POM beads in 3mm and 3.5mm sizes set the glide, and a pair of 2.778mm silicon-nitride spring beads take the load at the contact points.

The energy ball is a 6mm magnetic Buckyball. To change modes you remove the two screws on the push block, which frees the track and the ball for a swap, so reconfiguring the feel is a two-screw job, not a teardown.

The two modes are only the start of the modularity. The chassis takes seven swappable guide-rail tracks and a family of swappable cores, so the same body can be tuned from a soft pulse to a hard double-strike.

The core options climb in weight and bite. A standard magnetic core is the baseline, a titanium-damascus magnetic core adds pattern and a firmer hit, and a diamond-grain gen-2 magnetic core lands the heaviest, thickest impact of the set.

The Companion Bone is where the platform idea goes furthest. It is an expansion module larger than the slider itself at 304g, it carries that diamond-grain gen-2 core, and it mounts an r188 bearing, a 6mm knife-pendant, a rotor, or a tuning-fork core so it can be rebuilt into several different toys.

The collector ladder is built on materials, each chosen for a real engineering reason rather than just a color. PEEK is the light-and-tough polymer at a density of 1.3 to 1.45, roughly 80 percent lighter than steel, with two times its tensile strength and natural self-lubrication that lets it glide without any added lubricant.

Zirconium is the warm metal. Its alloy runs a density of 6.49, well above titanium, so it sits heavy and stable in the hand, and its heat conduction with a low specific heat makes it warm to the touch quickly, the jade-warm feel collectors describe. It also resists corrosion beyond titanium, holding its color and finish through long handling.

Stainless steel anchors the standard metal editions, including a time-accelerated aged-silver finish that reads as dark with a silver sheen. Above them sit the rare runs: a clear PC collector piece, a randomized G10 and carbon-fiber series carried here by material, craft, and color, and a four-piece superconductor that is the practical grail.

WANWU treats provenance as part of the product. Every run carries a numbered identity nameplate, assigned at packing rather than chosen, so each piece has a fixed place in its edition.

The rarest core goes further. The grand-hidden zirconium-damascus piece ships with a registered anti-counterfeit card whose serial maps one to one to a unique piece number, logged on the brand side so a genuine example can be verified.

There is also a buy-back standing behind the top piece. The brand will buy back a sealed grand-hidden example at a fixed figure, which is best read as the brand putting its name behind the piece and authenticating its collectible value, not as any kind of investment claim.

WANWU has hinted that the EXOSKELETON is not finished. The brand has teased a complete form and an ultimate form further up the line, framed as the next steps in the chassis rather than one-off variants.

Nothing about those later forms is documented yet, so they are worth knowing about but not worth buying on. The platform design, with its swappable cores and modules, is what makes that kind of forward path credible.

The quick version: pick by weight and intent. If you want the lightest pocket carry, go PEI; if you want a metal daily driver, go titanium; if you want the showpiece, go PEEK for the glide or the polished zirconium for the heft and the pattern.

These are the pre-owned EXOSKELETON pieces in stock at TRB Creation right now. Each one is a single discontinued piece, one of one, and links to its own listing. When a piece sells it is gone, so the set in stock shifts over time.

Pre-owned · Entry tierEXOSKELETON PEIView listing Pre-owned · All-rounderEXOSKELETON TitaniumView listing Pre-owned · Smoothest glideEXOSKELETON PEEKView listing Pre-owned · ShowpieceEXOSKELETON Zirconium MokutiView listing Pre-owned · Collector compositeEXOSKELETON G10View listing Pre-owned · Standard metalEXOSKELETON Stainless SteelView listing

More to explore: the fidget slider collection, the wider fidget spinner range, and the pre-owned shelf for discontinued runs. For another modular collector platform, see the GoBiggeR Pillbug series guide.

WANWU STUDIO builds high-complexity mechanical EDC, and the EXOSKELETON is its signature. The studio’s principal goes by Lao Wu, and the chassis was designed by Haina.

The brand leans into detail and personal narrative over spec-sheet minimalism. It even sells a display stand shaped like a tree, an incubation rack for collectors to fill out a full set of cores, which tells you how the line is meant to be lived with.

The EXOSKELETON earns its name. It is a fidget slider engineered around a two-beat magnetic-mechanical pulse, wrapped in a skeleton, and built as a platform you can re-core and re-track for years.

Start with the titanium or the PEI to learn the heartbeat, then climb the material ladder as far as you want to go. The chassis is the same; only the feel and the rarity change.

Last updated Jun 9, 2026.