The fitness equipment accessory spherical rotating pull pin spring knob is an essential component for various gym machines. It is designed to provide a secure and adjustable locking mechanism for equipment like weight benches and indoor bikes. To use, simply insert the pull pin into the designated hole and rotate the knob to lock it in place, ensuring stability during your workout. Features - Color: Multi -Material:ABS - Size: 8.00X5.00X5.00cm/3.14X1.97X1.97in -Ease of use: the ballshaped rotating pull pin design ensures adjustments, making it userfriendly for all fitness enthusiasts -Adjustable tension: the spring knob pull pin allows for adjustable tension, providing a experience for different workout intensities -Versatile application: suitable for various fitness equipment, including indoor bikes and weight benches, making it a versatile addition to any gym setup -Home and commercial use: ideal for both home and commercial gyms, offering flexibility and convenience for different environments -Simple installation: easy to install and use, this pull pin spring knob ensures a setup, saving time and effort Package list: 1 x fitness equipment head pin