Durable MaterialThe gym weight stack pin is made of high quality steel material, which is sturdy and durable. It is not easy to break, has reliable quality and long service life. FeatureThe longer pin length helps to keep the weight level as it moves along the bar. for quick action and reliable fastening solutions; Easy to UseThe weight stack locking pin is light and easy for you to insert and remove, convenient for your daily use. OccasionThe 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 GiftThe weight stack is an excellent gift for family, friends, and lovers, who like fitness. Specification: Material: Steel Size Chart: 15cm/5.91inch 14cm/5.51inch Package Includes: 1 Gym Weight Stack Pin Note: Please allow slightly errors due to manual measurement and different monitors.