Description: 【Material】: Fingers Wrist Trainer is Made of pp material, is sturdy and wear resistant, has a long service time 【Wrist Strength Exerciser】: This Wrist Strength Exerciser combine fingertips and wrists to fully activate the muscles needed for arm wrestling 【Design】: The Wrist Training ensures a firm grip,comfortable to hold, and doubles the training effect, suitable for both left and right hands, making training more flexible, recommended to hang on a gantry or pulley machine to perform small high level wrist flexion and pullback 【Portable】: The Fingers Wrist Trainer is portable and practical, can be easily put into the bag, easy to carry 【Package Includes】: Your purchase includes 1 Fingers Wrist Trainer Specification: Material: Pp Size Chart:Suitable For Thumb Circumference < 7.5cm/2.95inch, weight 55~78kg Package Includes: 1 Fingers Wrist Trainer Note: Please allow slightly errors 1-2cm differences due to manual measurement.