A weight loading pin is a simple attachment that allows standard or Olympic weight plates to be suspended from a cable, pulley, or strap system for a wide range of loading exercises. For climbers, it is most commonly used for wrist roller exercises, finger and wrist flexion and extension loading, and dead hang progressions where a specific, measurable load needs to be attached to a training device. It is also used with hanging straps or towels for grip and pulling strength work. The iron construction supports up to 130 kg, and the carabiner attachment makes it compatible with most cable and pulley setups.