MAGICYOYO Pack of 2 8 Ball Yoyo Bearings+ Bearing Remover Size C Replacement Bearing 8 ball concave regular bearing: R188K (sizeC) 6.35*12.7*4.76mm Remover Tool - length: 68mm Width: 6.3mm, to remove any size C bearings Practical yoyo accessaries include 100% poly string, have more fun with them Include:2 x Bearings, 1x Remover, 1x yoyo string