【4 DIFFICULTY LEVEL】The boxing reflex ball headset comes with 4 different balls corresponding to multiple difficulty levels.The yellow and black PU ball are 20g which is light and soft, suitable for boxing beginners and kids. The red ball is 30g which is suitable advanced and teens. And the green ball is 40g for professional boxer and adults. 【BEST FITNESS AND GIFTS】Boxing ball with 2 adjustable headbands.This is a boxing device that starts from zero.It is the ideal way to improve your reaction speed, agility, reflexes and hand eye coordination.it's perfect fits anyone from kids to adults, parents and children can train together,It can also increase family joy.That's a best gift for friends and family! 【FITNESS SKILLS】 Boxing reflex ball set training equipment works so that as your arms and hands respond to the quick ball movement, you build muscle memory.The best way to improve reaction time and eye. 【ENJOY TIME】The reflex ball set is portable, so you can practice your skills anywhere and anytime.You don't have to go to the gym, strap the headband on, have fun and burn your body within 15-20 minutes!You can exercise in the office, home and gym.Use boxing balls with family on the beach or park to increase the fun. 【EASY AND SAFE TO USE】We specifically designed 4 balls and the YELLOW and BLACK balls are very basic level for beginners,easy to get the hang of, it doesn’t require boxing gloves or hand wraps as the balls are very light and soft and do not hurt even if it hit in the face. Package Included: - 1 x Black ball (20g) - 1 x Yellow Ball (20g) - 1 x Red Ball (30g) - 1 x Green Ball (40g) - 4 x Extra Elatic Ropes - 2 x Anti-Slip Elastic Headband - 1 x String Tool - 1 x Waterproof Nylon Pouch (Black) Includes 4 different weighted balls (20g, 30g, 40g) for varied difficulty levels. Lightweight yellow and black balls (20g) are ideal for beginners and children. Medium-weight red ball (30g) suits teens and intermediate users. Heavier green ball (40g) is designed for professional boxers and adults. Adjustable headbands ensure a secure and comfortable fit for all ages.