Features: Features high strength stainless steel rings with professional hardening treatments for enhanced durability and reduced breakage risk, ensuring safe and stable workouts every time. Make of premium wood for excellent grip and comfort during pull up or wrist exercises, reducing hand fatigue and improving workout efficiency. High strength nylons webbing offer superior tensile resistance and wear resistance, maintaining shape and performances even after intense, prolonged use. Equipped with a robust buckle for secure attachment to training equipment, ensuring safety and reliability for both home and outdoor workouts. Ideal for enhancing forearm, wrist, and finger strength while serving as a comprehensive arm muscle trainer, suitable for beginners to professional athletes. Specifications: Color:Two Choices Ball diameter: 6cm/2.36in 7cm/2.76in Ribbon: 31cm long Hanging buckle: 31cm/12.2in Component: nylon+solids wood+steel Package Includes: 1set Pull Up Assist Trainer note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.