Exquisite and high-quality workmanship makes the surface smooth and burr-free. The miniature size makes it very convenient to carry and store. High speed and low friction make its work very efficient. And the rubber seal design makes it possible to avoid the entry of contaminants. Made of bearing steel material, it is very durable to use. The inner diameter is 1.5cm, the outer diameter is 3.2cm and the thickness is 0.9cm. It is very suitable for small hobby 15mm shaft or pole projects. Item Name: Bearing Material: Bearing Steel Model: 6002zz Quantity: 10Pcs Color: Silver Color Rolling Body: Single Row Type: Deep Groove High Speed Features: Round, Easy to Install, Wear-resistant Size Details: Size: Inner Diameter: 1.5cm/0.59", Outer Diameter: 3.2cm/1.26", Thickness: 0.9cm/0.35" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 10 x Bearings