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 strengthen your workouts to achieve fitness goals and gain better body shape and muscle strength. Multi-functional Applications: It is not only a weight stack pin but also a weight stack extender. It can enhance your home gym experience without bulky equipment and can also be used as a gift for people who enjoy fitness and strength training. Compatible with 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 Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the actual item. Measurement may vary by +/- 1-3cm.