The oversized 35 mm clamp diameter offers increased strength and minimal weight;7075 T73, 3D, forged alloy construction;Laser-etched calibration marks make dialling in the perfect angle simple and repeatable;Compatible with both Knock Block and standard head sets and spacers;Blendr-compatible for an elegant, integrated accessory mounting solution;High-strength, corrosion-resistant steel bolts;Includes Blendr mono base, Garmin Mount and Ion Light Mount;Approved for carbon bars;