Manufactured by SPIBlack extruded 661 T6 aluminum Handlebar riser block2″ flat mount, non-pivot style block for flat style steering postIncludes everything pictured for installationBolt holes are 1/4″ in diameterYou may have to cut cable ties and reroute brake line, throttle cable and wires to create enough slack required for taller mounting position. After installing the block, turn the handlebars fully left and right while checking for proper slack in the brake line, throttle cable and wires. Also re-secure any cables or wires that you may have cut the cable ties off of