Weather Resistance TPSIV Injection Silicone Foam Bicycle Handlebar Grip - Made by well-know manufacturer in Taiwan with 20+ years advance foam technology expreience. Grip that give you the maximum ride experice.TPSIV Injection Silicone Form - Better Durability. Easy to install, no more squeezing, cutting or greasing. Slip Proof and Shock Resistance that keep your hand on the handlebar Longer. Good for both novice and advance riders.