Sram dh silicone locking gripssrams dh silicone locking grips have a tough and durable silicone compound that offers reliable grip no matter how rough the terrain gets they include lockrings for either end that hold them securely in place and thumb donuts flanges to prevent your hand slipping inwards features material high grip silicone 4x lightweight aluminium lockrings 2x lightweight plastic end plugs with s logo detailing thumb donut flange length 139mmbuysram componentsfrom chai