The Race Face Grippler grips feature a clever clamping mechanism. The aluminum clamp rings do not clamp directly onto the carbon handlebar, and by using polyurethane instead of Kraton, the Grippler Lock-On grips offer more comfort and durability. The aluminum clamp rings are integrated into the grip, giving these grips a sleek appearance and enhancing comfort. The Race Face Lock-On grips are available in 30 and 33 mm diameters and in various colors to perfectly match your bike. Material specifications: Polyurethane. Design: Screw grips. Shape: Sport grip. Screw security. Intended use: MTB. Weight: 110 g.