






Lionscool Seated Curl Extension Machine
Trusted by 3000+ Fitness Enthusiasts
Preorder now!
Available in March!
Lionscool offers a 2-year limited warranty covering all structural and functional components under normal use. For warranty support, please contact our customer service team to keep your equipment performing at its best.

Overview
The Lionscool Leg Extension Curl Machine is the premium 2-in-1 solution designed for serious home lifters seeking max lower body development. This Plate Loaded unit replaces two pieces of equipment, allowing you to perform both Quad Extension and Hamstring Curl movements efficiently for superior muscle Isolation.
Core Features:
- Dual Functionality: Seamlessly switch between Leg Extension and Leg Curl, providing full coverage for the front and back of your thighs.
- Home Gym Optimized: Features a compact footprint, making it the ideal Home Gym Leg Machine for maximizing space.
- Smooth Resistance: Utilizes an optimized cam system for a consistent and challenging resistance curve throughout the entire range of motion, enhancing the muscle pump.
- Heavy-Duty Build: Constructed with high-strength steel and reinforced components (often V4 specs) for stability and safety under heavy loads.
- Adjustability: Multi-position adjustments accommodate various user heights, ensuring perfect form for effective Quad and Hamstring Isolation.
FAQ
Will you ship the upgraded accessory package?
Yes! we will send the upgraded package including a Longer Cable and a pulley. Please be advised that while your main product will ship immediately, the replacement accessory package will be shipped separately and will arrive approximately 7-10 days later than your main product delivery.
What muscles do leg extensions work?
The leg extension is an isolation exercise that specifically targets the quadriceps femoris, the large muscle group at the front of your thigh. This group is composed of four distinct muscles: the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius. All four of these muscles work together to perform knee extension, which is the primary movement of this exercise, making it highly effective for building strength and definition in your quads.
Are leg extensions bad for knees?
Using the Lionscool Leg Extension is a highly effective way to isolate and strengthen the quadriceps muscles at the front of your thighs. We understand the common concern regarding knee safety. When performed correctly, the leg extension is a safe exercise. The key is to select an appropriate weight and to avoid using momentum or jerky motions. At the peak of the movement, keep your knees slightly bent instead of fully locking them to ensure the tension remains on your muscles, not your joints. By focusing on slow, controlled movements, you can effectively build quadriceps strength. Stronger quads actually contribute to greater knee stability, which helps protect the joint. If you have a history of knee injuries, we recommend consulting with a doctor or physical therapist before use.
What is the warranty policy?
We offer a 2-year warranty on core components and lifetime technical support. In case of a faulty component, we commit to a 24-hour response time for replacement part shipment.
What should I do if a component is damaged?
Should you encounter any quality issues, we're here to help. For example, in a recent case, customer A received a free replacement for a damaged component. Please refer to our service flow chart for the detailed process.

