Material: The gym weight stack is made of high quality steel material, which is sturdy and . It is not easy to break, has reliable quality and long service life. Feature: The longer pin length helps to keep the weight level as it moves along the bar. for quick action and reliable fastening solutions; Easy to Use: The weight stack locking pin is light and easy to insert and remove, convenient for your daily use. Occasion: The steel weight stack pin is the perfect accessory for gym, fitness, weightlifting, exercise, training, etc. Easy and quick installation makes it easier for unisex to use. Great Gift: The weight stack is an excellent gift for family, friends, and lovers, who like fitness. Size:A:8x110nn+3 circles of circlip Colour:Black Material:Metal Package Contents: 1 * Gym Weight Stack Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.