... effect rotation 3)Thickness:7mm 4)High precision high effect wheel bearing 608ZZApplication:skateboard bearing,skate bearing,inline skate bearing,other ... )AccuracyABEC-1,ABEC-3,ABEC-5,ABEC-7Advantages:1.high speed rotation,low noise2.high precision3.worthy to preferred bearing4.durable ... days after the depositpackage:normal packing,customized available high effect wheel bearing 608ZZ (YH-B01)