Punching Training Bags Boxing Reflex Balls with Fitness Headband Punching Training Balls Set This Reflex Ball Set is a good choice for increasing eye-hand coordination, reflexes and agility.Different levels for different balls, and 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. Nylon headband with adjustable fastener tape.Head circumference: 35-60cm/13.8-23.6in. Come with replacement strings 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: Nylon,PU Foam Headband circumference: 35 - 60 cm / 13.8 - 23.6 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. 135-200 g / 4.8-7.1 oz Package List: 1* Head Band 1* Yellow Ball 1* Green Ball 1* Storage Pouch 1* Instruction 2* Replacement Strings (color by random) 1* Cord Stopper