Check the listing for details. 3/8 x 4-1/8" Magnetic Weight Stack Pin Universal Gym Pin Red. Color: Red, Condition: New. Listed at 18.83 USD. Universal magnetic weight pin for a commercial gym or home gym. Suitable for gym machines, fitness equipment, cable stacks, leg presses, and high-intensity workouts like drop sets, weightlifting, and functional training.SpecificationColor: RedMaterial: 304 Stainless Steel, Aluminum AlloyLength: 105mm / 4.13 Inch (Approx 4-1/8")Diameter: 10mm / 0.39 Inch (Approx 3/8")Packing List: 1x Magnetic Weight Stack PinAdvantageFeature: Crafted from 304 stainless steel pin and aluminum alloy handle, it is durable and sturdy, resistant to rust and corrosion, and not easy to break.Design: The magnetic design can firmly attach to the weight stack, not easy to fall off. With elastic rope, helps you quickly and easily switch between different workouts.