Redshift's Quick-Release Aerobars are different than any other aerobars on the market. The patent-pending quick-release mechanism allows you to attach or remove the aerobars in a few seconds, without any tools. You can choose the best setup for every single ride.Quick-release mechanism allows you to attach or remove aerobars in a few seconds.No tools required to remove or attach the aerobars.Aerobars always attach in the same orientation.Extensions are available in aluminum and carbon, as well as L-Bend or S-Bend shapes.Secondary safety release mechanism prevents accidental release.Massive adjustability lets you fine-tune your fit - extension length, armpad fore-aft, armpad widthFits 31.8mm handlebars (26.0 mm Shim Kit sold separately)Along with the Redshift Dual-Position Seatpost, provides an optimised aero riding position on your road bike.The Quick-Release Aerobar package contains the following:Handlebar ClampsQuick-Release MechanismsAerobar Extensions, Armrest, and Armrest Pads