Description: Premium and Reliable: The gym weight stack gym pin is made of quality steel machine, which is sturdy, security, not easy to break, and long service lifeHigh Performace: The longer pin length helps to keep the weight level as it moves along the bar. Suitable for 25mm diameter hanging piecesEasy to Use: The weight stack locking pin is light and easy for you to insert and remove, convenient for your daily useWide Appliction: Weight stack extender pin can be secured to their designated machine, to work out wrists, fingers, forearms and elbows, shoulders, biceps, and tricepsNice Accessories: The weight machine pin is essential accessory for exercise machines, and also an great gift for family, friends, and lovers, who like fitness Specification: Material: Steel Size Chart: Groove Width: 2.8cm/1.10inchGroove Depth: 8.5cm/3.35inch Package Includes: 1 Gym Weight Stack Pin,1 Spring Clip Note: Please allow slightly errors due to manual measurement and different monitors.