- Seated Leg Extension And Curl Machine: This rack attachment replaces the traditional bench leg extension design. It is detachable, adjustable, easy to store, has a small size and light weight, and enables effective leg muscle training without taking up much space. - 8 gears adjustable: The leg extension attachment has 8 adjustable positions to fit different body sizes and training requirements. It ensures a custom fit for each individual and is suitable for strengthening triceps, biceps, chest, shoulder and back muscles. - Stable and sturdy: Built from high quality steel with a foam roller. The steel construction supports up to 600 pounds, providing stability and durability, while the extra-thick foam pad is soft, wear-resistant, and comfortable during workouts. - Fit squat rack holes: Mounts on a power rack for exercise and fits racks with holes 1.6/1.8/2.6 cm (0.6/0.7/1 inch) in diameter. It is applicable to 2.5/5 cm (1 /1.96 inch) diameter barbell plates for versatile training. - Use scenarios: - Home gym with a power rack: attach and perform seated leg extensions and curls without a full bench setup. - Small spaces or apartments: detachable and compact for easy storage when not in use. - Progressive training: 8-position adjustability supports different users and training phases, enabling safe, customized leg workouts.