【Size & Package】Model: MR106ZZ; I.D.: 6mm, O.D.: 10mm, Thickness: 3mm. Package including: 20 x Deep Groove Ball Bearings. 【High Hardness & High Toughness】Bearing steel is a premium material specifically designed for bearing applications. It features high hardness and toughness, making it ideal for high load-bearing capacity and durability. 【High Durability & High Precision】Bearing steel bearings offer high load-bearing capacity, durability, and precision, making them perfect for small machinery. Manufactured to precise standards, they provide smooth and efficient operation even under high loads. 【Low Friction】High RPM support minimizes wear, protecting bearings from early failure. Designed to withstand high pressure, these bearings feature double rubber seals on both sides, ensuring integrity and reliability in various structures. 【Versatility】These bearings are versatile, suitable for a wide range of small machinery applications, including skateboards, longboards, inline skates, scooters, and fidget spinners. TOP-VIGOR 20Pcs MR106ZZ Deep Groove Ball Bearings, 6mm x 10mm x 3mmDouble Sealed Industrial Bearings, Chrome Steel Skateboard Bearings for Electrical Instrument Equipment