Product Size: 14"x 8.5", 35 to 40 pounds training resistance. Effectively build your wrist and forearm strength. Equipped with 4 suction cups, hand rope, ABS Non-slip handle and 6mm spring. Ensure the safety of training. Suitable for a variety of training environments, such as glass table, desk top and so on. Easy to install or remove. The arm wrestling training device can be easy storage when not in use. Package contains: Grip x1, suction cup base x1, nut x1, gasket x1, wrench x1. Note: Please install on a clean, smooth place for maximum suction. If parts are missing or other problems, please contact us! The Suction Cup Spring Arm Wrestling Strengthener is a versatile and portable fitness tool designed to enhance your wrist, forearm, and grip strength. Its durable suction cup base ensures stability on smooth surfaces, allowing you to focus on your workout without slipping. Made with high-quality materials, it offers long-lasting performance and easy cleaning, making it an essential addition to your fitness routine. Strengthen your grip, improve endurance, and achieve your fitness goals with this innovative and user-friendly tool! it’s perfect for home, office, or on-the-go training!