Use your Profile Design Aerodrink Bracket to complete your Aerodrink hydration system. Attaches to bars with Velcro? fastener straps (included). VELCRO?, ONE-WRAP?, and STICKY BACK? are registered trademarks of Velcro Industries B.V.Adjusts to 120mm wide for split bars. Attaches with provided VELCRO? brand straps. Bottle attaches to bracket with VELCRO? brand strap. 31g. Works with Aero Drink Bottle (# 58704).