16 Pack Fidget Spinner Bearing and Cap Replacement Set, Chrome Steel Bearing Balls, High Speed 13mmx7mmx4mm Bearings Single Sealed Small Bearings for Fidget Spinner

描述

⚙️ Spin smarter, not harder — upgrade your fidget game today!

This 16-pack replacement set includes MR137 high-speed chrome steel ball bearings (13mm outer diameter, 7mm inner diameter, 4mm thickness) with single-side seals to protect against dust and moisture. Each bearing is precision polished for smooth, durable performance, paired with 16 pairs of black ABS plastic caps for easy installation. Ideal for fidget spinner repairs, upgrades, and custom DIY projects, this set delivers professional-grade quality to keep your spinner spinning longer and faster.