Why are they called Bareback? Because they don't use Jimmy Hats. This is the last reissue of the XXXXL and with this all new price they are a steal. It uses a Beefcake double large size C bearings and Ghost Pad sticker response and can take Jimmy Hats if you want to stack it. The first yo-yo to be played with 1, 2, 3 or 4 bearings. Single bearing gap requires the Spacer Set.