Gym Exercise Extension Cord Barbell Parts for Strength Training Sports Trainer Diameter 10 mm Description: [Premium and Reliability]: The weight stack exercise pin is made of high quality steel, which is sturdy, durable, not easy to break and has a long service life. [Weight stack extension pin]: The longer pin length helps maintain the weight level when moving along the barbell. [Easy to Use]: The weight stack locking pin is lightweight and easy to insert and remove, convenient for daily use. [Wide Application]: The weight stack plate can be attached to the designated machine to exercise wrists, fingers, forearms and elbows, arms, biceps and triceps. [Nice Accessories]: The exercise pin is an essential addition to exercise machines, as well as a gift for family, friends and lovers who enjoy fitness. Specification: Material: steel The package includes: 1 gymnastic weight stack pin