Prologic Clinch butt grips will not let you down by providing a secure fit for rods of any size. There are three sizes available to firmly grip your rods without destroying cosmetics or fragile cork. The Clinch rubber grips are incredibly flexible, allowing for a minimalist appearance while securely grasping your rods. Tough pliable nylon construction Non-slip rubber outer coating Suitable for all rod diameters Three size options: S-13mm, M-17mm, L-21mm