Punching Training Bags Boxing Reflex Balls with Silicone Fitness Headband Punching Training Balls Set This Reflex Ball Set is a good choice for increasing eye-hand coordination, reflexes and agility.It's widely suitable for training,release pressure and burning calories. Feature: Good choice to increase hand-eye coordination,pouching accuracy,reflexes and agility. Different balls with different levels for training step by step. Adjustable silicone headband with breathable holes and ergonomic groove design,conducive to sweat flowing from both sides.（Head circumference: 53-58cm/20.9-22.8inï¼?Come with replacement strings(color by random) and cord stopper for easy replacement,and easily connect to balls and headband. Packed in a included storage pouch for convenient carry,perfect for office,home or during gym training. Suitable for adults,teenagers and even advanced trainers,good for training,release pressure and burning calories. Specification: Balls: Yellow&Green / Yellow&Green&Red / Yellow&Green&Red&Black (optonal) Material: Silicone + PU Foam Headband circumference: 53 - 58 cm / 20.9 - 22.8 in Black PU balls diameter(20g): 6.3 cm / 2.4 in Yellow PU ball diameter(20g): 6.3 cm / 2.4 in Red PU ball diameter(30g): 6.3 cm / 2.4 in Green PU ball diameter(30g): 6.3 cm / 2.4 in Package weight: Approx. 130 - 200 g / 4.6 - 7.1 oz Package List: 1* Headband 1* Yellow Ball 1* Green Ball 1* Storage Pouch 1* Instruction 2* Replacement Strings (color by random) 1* Cord Stopper