twister arm trainer Material Crafted with strength metal springs to deliver strong elasticity, durability, and stable, smooth motion throughout your workout. Safety and Comfort Leatherwrapped metal components protect your skin, while thickened antislip foam handles provide a secure and comfortable grip, even during intense sessions. Adjustable Intensity Three levels of resistance allow you to tailor the workout to your fitness level, from beginner to advanced, and adjust as you progress. Easy and Efficient Simple to assemble and disassemble, the unit is compact and spacesaving for easy storage and transport. Suitable for use at home, in the office, outdoors, or while traveling. Function and Performance Designed to strengthen and tone arm and chest muscles with reliable construction and consistent performance in a compact form factor. Size and Compatibility Portable and lightweight with a compact footprint that fits easily into limited spaces; designed for versatile use with various fitness routines without requiring additional accessories. Practical Use Scenarios Home workouts: quick warmups and upperbody activation before resistance training or cardio. Office breaks: short sessions to relieve stiffness and maintain strength during the workday. Travel or outdoor training: easy to pack for hotel rooms, parks, or outdoor workouts to sustain progress while on the move.