Please use street address instead of PO BOX address. Our product comes with a one-year warranty. If you encounter any issues including accessories, replacement parts, or repair suggestions — we guarantee a response within 25 hours.

• Complete Leg Training: The FEIERDUN leg extension and curl machine is designed to maximize your lower-body workouts. The leg extension targets your quadriceps, while the lying and seated curl options fully engage your hamstrings. It’s the ideal partner for effective leg training at home.
• Personal Adjustable, Fit for Most Body: Our leg extension machine is engineered with 3 key adjustment points -the leg extension offers 15 positions, the leg pad features 11 settings, and the backrest provides 9 adjustment levels. It is designed for users between 5'2" and 6'2", providing proper leg alignment, comfortable positioning, and smooth movement patterns across all exercises.
• Rock-Solid Stability, No Risk of Tipping: The combination of an extra-wide 50.39”x 42.51” base and a heavy-duty steel frame constructed from 2”x 3”(1.5mm thick) tubing delivers unshakable stability, even under maximum load. With zero wobble, no shift, just solid performance that makes every rep feel secure and controlled.
• True 1:1 Cable Ratio, Feel Every Pound You Lift: Unlike common 3:2 systems that dilute resistance, the FEIERDUN leg curl machine utilizes a true 1:1 cable transmission ratio, directly transferring 100% of your chosen weight to the muscles. This ensures precise weight tracking-perfect for multiple users and conducive to consistent, long-term strength gains.
• Premium Comfort for Focused Training: Our leg extension curl machine features thigh restraint foam pads that securely hold your legs in place, preventing lifting and knee injuries. The 15.3 x 17.3 inch widened seat and 22.8 x 12.2inch extended backrest provide even, full-body support, keeping you comfortable and focused on your workout, even during high-intensity training.