TOOGOO(R) 8mm x 19mm x 6mm Sealed Deep Groove Radial Ball Bearings 698Z 10 Pcs Product Name : Deep Groove Ball Bearing;Model No. : 698Z Inner Diameter : 8mm / 0.31";Outer Diameter : 19mm / 0.75" Height : 6mm / 0.24";Color : Silver Tone Material : Metal;Net Weight : 72g Package Content : 10 Pcs x Deep Groove Ball Bearings