Driven Racing Riser Type Clip-Ons - 50mm - Black DHCLOR-50-BK Constructed from aerospace-grade 6061 T-6 billet aluminum bars and 7075 T-6 billet aluminum clamps Ultimate strength and unmatched anodized color Laser etched with precision equipment Available in black or titanium anodized finish Riser-style clip-ons feature a fixed 1.5in.rise and adjustable bar angle; each side allows for up to 10 degree of adjustment and comes with plastic bar end sliders already installed