Put some new life to your scooter or bike with these nice looking sports design handle sponge grips. Grip measures 13.05 centimeter x 3.7 centimeter . Bar opening is 2 centimeter wide. Ideal for razor scooters and most bikes. It's easy to install: installation Instructions: 1) Remove your existing grips. It maybe helpful to use some WD-40 inside your existing grips to help loosen it up. If required, use a cutter and knife to cut open your existing grips. Careful not to damage your chrome. 2) Clean the handlebar with soap and water to remove the WD-40 and/or residues on the handlebar. 3) Apply a squirt of hair spray or hand sanitizer inside the new grips 4) Push the new grips into the handlebar all the way through. Remove any excess hair spray or hand sanitizer.