Description:8pcs 8x22x7mm ABEC 7 Groove Ball Bearings Skateboard Bearings<br>Specification:Material: Carbon steel<br> Inner Diameter: 8mm<br> Outer Diameter: 22mm<br> Thickness: 7mm Weight: 102g   Color: Red， Yellow， Blue， Black   Quantity: 8 pcs   <br>Features:<br> Carbon steel material， solid and durable.<br> ABEC 7 wheel bearings， suitable for rollerblades skateboard.  Package Included:<br> 8 x Wheel Bearings<br> 1 x Plastic Cover<br> 4 x Tube<br>  More Details: