This weight stack pin is made of steel, safe and reliable. Our weight stack pin is simple and easy to use—just insert it into the weight stack machine and adjust the weight according to your exercise needs. It can help you enhance your workouts to achieve fitness goals and improve body shape and muscle strength. Multi-functional Applications: It serves as both a weight stack pin and a weight stack extender. It enhances your home gym experience without requiring bulky equipment and can also be used as a gift for individuals interested in fitness and strength training. Size: 8mm for 9-10mm diameter fitness equipment Color: Black Material: Steel Package Contents: 1 x latch rod (110mm long) 1 x rubber handle retaining ring Note: The package includes only the items listed above; other products are not included. Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3cm.