Description: Upper Body Workout Equipment: This Arm Rotator Machine is specifically designed for training arms, chest, shoulders, back, biceps, back muscles, waist, neck muscles and the entire upper body.Quality and Reliable: The Arm Exerciser is made of stainless steel material with high tensile strength, sturdy, lightweight and not easy to break. Design: The Forearm Trainer is with a 360 degree rotating resistance force and comfortable grip strength that provides maximum resistance throughout your workout process.Compact & Portable: The Forearm Exercise is with a simple structure, in size 37cmx16cm/14.57inchx6.30inch, easy to carry to the office, gym or while camping or traveling for exercising anytime anywhere.Suitable for Everyone: The Hand Forearm Trainer for upper body exercising is suitable for young people, adults, beginners, exercisers and coaches. Please choose according to your own strength. Specification: Material: Stainless Steel Size Chart: 37cmx16cm/14.57inchx6.30inch Package Includes: 1 Arm Apparatus Note: Please allow slightly errors due to manual measurement and different monitors.