Durable spring steel construction Made from spring steel, this chest expander is built to withstand intense workouts and provide long lasting performance. It supports progressive strength training and muscle development at home or in the gym. Ergonomic aluminum alloy handles Non slip, lightweight aluminum alloy handles provide a comfortable and secure grip during exercises. Their ergonomic design reduces hand strain and enhances control, helping you target the chest, shoulders, and back effectively. Detachable and portable design Springs are easily detachable for compact storage. This chest expander is space saving and convenient to transport, making it a practical choice for home fitness and travel. Versatile upper body trainer Engineered for comprehensive upper body workouts, including chest presses, pulls, and stretches. It helps improve muscle definition, strength, and endurance, suitable for beginners and advanced fitness enthusiasts. Use scenarios At home workouts focused on chest, shoulders, and back, with options to adjust resistance as you progress. Short warm up or mobility routines to activate upper body muscles before training. Travel or small space workouts, thanks to its detachable springs and compact storage for easy packing.