General description The 50Pcs MR63ZZ Deep Groove Ball Bearing is designed for a variety of applications including electric motors, toys, models, instrumentation, power tools, communication equipment, and fitness equipment. This standard model meets the requirements of most customers, offering a smooth feel, low noise, and a long service life. Technical specifications Model: MR63ZZ Size: 3 x 6 x 2 mm Material: Bearing steel Color: Silver Package Contents: 50 bearings Other information Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.