"One slide hammer assemble & 4 clamp Attachments for 3/8”to 1/2”(10-14mm), 9/16”to 11/16”(15-19mm), 5/8”(18-25mm) & 1”to 1-1/4”(25-32mm) 1.D.Bearings’ pulling. Open clamps by turning handle clockwise to snug against the bearing for pulling out evenly without damage the parts"