This item has only been used indoors for personal hobbies and has been stored at home. It was purchased with a SONY 70-200 telephoto lens base. The 113mm base provides excellent stability for the telephoto lens and is very useful. Also, this RRS rail comes with a stopper. Please check the images. Everything in the images is included. ・Improved Stability - The Really Right Stuff MPR-113 rail securely and safely connects your camera, minimizing movement and ensuring sharp images with its robust design. ・Universal Compatibility - Featuring two 1/4"-20 mounting screws, this versatile rail seamlessly integrates with a wide range of cameras and accessories, offering flexible setup options. ・Lightweight Design - Weighing only 2.9 oz (82g), the MPR-113 adds minimal bulk to your gear, making it ideal for photographers on the move who prioritize portability and performance. ・Durable Materials - Made from high-quality materials, this rail withstands rigorous use and ensures long-lasting reliability in various shooting conditions, providing peace of mind. ・Easy Installation - The included hex key and screws allow for quick and easy installation, allowing you to efficiently set up your equipment and focus on capturing the perfect shot.