Holds up to a 3-1/2" (8.9cm) diameter water or fuel bottle, or even a fire extinguisher. Straps to 3-1/2" (8.9cm), or smaller, diameter tubing, roll bars or tactical MOLLE attachments points found on all Kuryakyn Momentum luggage (as well as other luggage brands). A non-slip textured PVC fabric interior provides secure grip for any type of bottle. Elastic cord cinches around neck of bottle for added security.