2-in-1 Arm Trainer & Ab Roller Double the training in one device! Use it as an arm twister to build upper body strength, or detach into an ab roller for core workouts. The snap-fit design means no tools—just quick transitions between exercises. Comes with a free backpack and yoga mat for convenience. 15-Level Adjustable Hydraulic Resistance (22–440 lbs) Customize your workout with precision. The hydraulic system delivers smooth, even resistance across 15 levels, letting you scale from beginner to advanced at your own pace. Feel progress with every set. Full-Body Muscle Activation Target multiple muscle groups with a single tool. Strengthen shoulders, chest, triceps, and forearms using the arm trainer. Switch to the ab roller to work your abs, obliques, and lower back. Maximize results with minimal equipment. Ergonomic & Easy to Adjust Slide the handle into 10 positions to match your training needs. Featuring  anti-slip foam handles, it provides enhanced traction and comfort during intense workouts—reducing hand fatigue while keeping each rep controlled and smooth. Portable & Space-Saving Fitness that fits your life. Detach and pack into the included backpack—perfect for home, travel, office, or roadside workouts. Whether you're a truck driver, remote worker, or fitness lover on the move, this compact gear goes wherever you go. What’s in the box: 2-in-1 Twister Arm Trainer ×1 Storage Hook ×1 Directional Wheel ×1 Universal Wheel ×2 Yoga Mat ×1 User Manual ×1