Rush alloy scooter Quad clamp is a 4 bolt design with 3 slits in it to limit the bar from bending and clamp breakage. This clamp is 70mm in height and will fit all regular sized one piece scooter bars that are 31.8mm in diameter. Such as all 81 Customs bars, District Bars , JD Bug Bars,Slamm Bars, Blazer 4130 Bars(Does not fit Blazer 6061 Aluminium Bars) , Madd MGP Y Bars, and Grit Yeh Yeh Yeh and Raker Bars. Anodized finish. Does not fit oversized bars