







⚡ Spin faster, last longer — upgrade your fidget game now!
This 16-pack replacement set features MR137 chrome steel ball bearings (13mm outer diameter, 7mm inner diameter, 4mm thickness) with single-sided seals to protect against dust and water. Paired with durable black ABS plastic caps, these precision bearings deliver smooth, high-speed spins and long-lasting performance, ideal for fidget spinner repairs or custom builds.
| Brand | NiArt |
| Model Number | Ball Bearings |
| Colour | Black Cap Bearings Only |
| Product Dimensions | 6.35 x 6.35 x 1.27 cm; 91 g |
| Material | Acrylonitrile Butadiene Styrene (ABS) Resin |
| Item Weight | 91 g |
Trustpilot
1 week ago
3 days ago
1 month ago
2 months ago