Eraser Core

The Eraser Core by MUYI is a compact, precision-built slider designed for everyday carry, delivering a surprisingly deep and customizable tactile experience in a small, discreet form factor.

Built with a layered multi-material construction, the Eraser Core features a distinctive “sandwich” design that blends aesthetics with function. The textured grille not only enhances grip but also supports dual 3×22.5mm tritium tubes, adding a subtle glow for low-light environments.

At its core is a three-track sliding system, offering multiple play styles in one device. The middle track delivers crisp, mechanical feedback, dual-track mode introduces a smoother, more resonant feel, and full tri-track activation combines both into a dense, layered tactile experience that’s both satisfying and addictive.

Designed with modularity in mind, the Eraser Core includes interchangeable magnetic components and integrated 3mm beads that create sharp, high-frequency feedback with every movement. The result is a highly tunable fidget that adapts to your preferred feel, from subtle and quiet to bold and expressive.

Compact, versatile, and mechanically rich, the NAYICI Eraser Core is built for collectors who want maximum function in a minimal form.