These ball head safety pins are not only practical but also versatile, suitable for various fitness applications such as weight lifting, muscle training, and home gym setups. The iron material offers excellent strength and reliability, ensuring your equipment remains securely in place during intense workouts. Upgrade your fitness gear with these indispensable pins. Features -Color:Black -Material:Iron -Size:13.00X3.00X3.00cm/5.11X1.18X1.18in -Sturdy and Strong: Made of sturdy iron material, which can be high strength, sturdy and strong and can be used for a longtime -Locking Mechanism: The plug-in locking mechanism makes it easy to adjust the weight plates -Stable and Secure: The creative design ensures that the weight plates stay securely in place -Strength Training: Used with your fitness pulley system, effectively improve your strength training -Various Used: Proper for various warm-ups sports and strength workouts like arms, shoulder or back training Package list: 2 x Weights Stack Pins