Leg curl extension attachment - High Quality Materials The Leg Curl Extension Attachment is carefully crafted from heavy-duty steel to provide a sturdy, stable construction with a high load capacity for demanding leg training. An abrasion-resistant powder coating helps prevent corrosion and keeps the unit looking and performing well over time. - High Adaptability This attachment fits under holes of 16, 18, or 26 mm. Mounting screws and bolts are included for easy installation. It can only be mounted on pipes that have through-holes, so please check your equipment before purchasing. - Compatibility Designed for use with seated leg extension and curl machines, it adapts to body size and training requirements during muscle group work. The leg extension attachment offers 8 adjustable positions to ensure a custom fit for each individual. It is suitable for strengthening triceps, biceps, chest, shoulder and back muscles. - Leg Strengthening Device Intended for targeted training of specific muscle groups, it is an effective tool for building and strengthening leg muscles. Its compact design makes it suitable for use at home or in the gym. Use scenarios - Home gym setup: Attach to a compatible seated leg extension and curl machine to perform leg extensions and curls with a customizable fit. - Studio or gym installation: Mount on standard pipes with 16/18/26 mm through-holes for quick, shared access; easy to install and remove for multiple users. - Versatile training and conditioning: Use the 8 adjustable positions to tailor movement and resistance for leg-focused training as well as supporting broader upper-body muscle engagement including triceps, biceps, chest, shoulders and back.