Material: Pull Pin is made of steel and nylon to ensure durability and reliability in a variety of applications Versatile: Pull Pin Spring Knob is designed specifically for fitness equipment, providing a secure and adjustable fit, making it an essential part of your fitness equipment Snug fit: Fitness Pins provides a snug fit while maintaining ease of use during adjustment User friendly design: Exercise Handle has an ergonomic handle that allows for quick and easy installation or removal, improving user convenience Package: Contains 1 Exercise Bike Locking Pins, ensuring you have everything you need to maintain upgrade your fitness equipment Size Chart:9.6cmx5.6cm/3.78inchx2.20inch Package Includes: 1 Pull Pin Knob Note: Please allow slightly errors due to manual measurement and different monitors.