uxcell 2 Pcs 10mm x 30mm x 9mm Row Deep Groove Ball Bearing 6200Z Product Name : Deep Groove Ball Bearing;Model : 6200Z Materal : Metal;Outer Diameter : 30mm/ 1.2" Inner Diameter : 10mm/ 0.39";Width : 9mm/ 0.35" Main Color : Silver Tone;Weight : 61g Package Content : 2 x Deep Groove Ball Bearing