Check the listing for details. Twister Arm Trainer, Chest Workout Equipment Exerciser for Men. Condition: New. Listed at 15.00 USD. The Twister Arm Trainer is a sturdy and durable chest workout equipment designed specifically for men. Made of steel, this exerciser is ideal for gym and training activities, focusing on targeting the chest muscle group. With its compact design and easy-to-use features, this piece of fitness equipment is perfect for individuals looking to enhance their chest strength and definition through effective workouts.