Adjustable U-Arm Twister Arm Trainer

High-Capacity Performance & Ultimate Portability Professional 60-110lbs Resistance RangeHigh-strength metal spring system delivers adjustable resistance from 60 to 110 pounds, providing professional-grade training intensity suitable for all fitness levels while maintaining exceptional durability and stability. Smart Detachable DesignInnovative collapsible construction allows quick assembly and disassembly for convenient storage and transport, transforming from full training equipment to compact carry size in seconds.