1.Multi Muscle Group Training: Targets chest muscles, shoulders, arms (biceps/triceps), forearms, and core muscle groups to strengthen upper limb strength and coordination. Activates small muscle groups that are difficult to train with traditional equipment through movements such as rotation, pushing, and pulling. 2.Adjustable Resistance: Spring resistance of 40-100lb, starting from lower resistance and adjusting strength according to your fitness level, very suitable for beginners to advanced users. Balances and enhances fundamental strength. 3. and Detachable Design: , easy to assemble/disassemble, suitable for home, gym, or outdoor use. The compact storage space makes it easy to travel. 4.Three in One Resistance System: High-strength metal spring, strong elasticity, long life, no jerking sensation in spring resistance, reducing joint impact. Three level resistance adjustment meets different intensity requirements (primary/intermediate/advanced). Leather wrapped design to prevent sports scratches and enhance . Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store