Material? This rifle butt pad is made of high-quality double-layer oil wax canvas and cowhide Leather, heavy-duty stitching and durable. Butt Pad size? 5 ½” x 4″ x 1 ¾. Ergonomic Buttstock? The edge of the gun buttstock that contacted with the shoulder is rounded to perfect fit with your shoulders. Comfortable Shoulder Pad? Provided 4 pieces neoprene inner cushions to help reduce risk of injury or pain associated with gun recoil and shock. Easy to Use? This leather shooting pad works for wooden & synthetic stocks and seamlessly fits over the buttstock of any rifle or shotgun without modifications. Waxed Canvas String? Some customers reflect that the leather string of the buttstock is easy to break during installation, so we change to dia 5mm Oil Waxed string, which is easier to tye and duarable. Material? Made of buffalo hide leather and waxed canvas inner cushion for non-slip, heavy-duty stitching and durable. Fit 1″ Swivels? Our shell holder sling can be adjustable from 33.5″ to 41.5. Both ends of the shoulder strap are 1 inch wide, suitable for most rifle swivels. 45 Long Colt, 7MM REM 6.8 SPC and. 410 shotgun bullets as well. 17 hmr Cartridge Holder. 12GA Shell holder Shotgun Sling? :This sling is specially made for bullet models such as 12 Guage. Note that 20GA and 16GA are not available. 16GA Shell holder Shotgun Sling? :This sling is specially made for bullet models such as 16 Guage. 20GA Shell holder Shotgun Sling? :This sling is specially made for bullet models such as 20 Guage. Package include? 1pcs Padded Leather ammo holder sling.