2 level boxing reflex training ball: This is the red ball [85 g] for the experienced player, the normal black ball [23 g] for beginners. It is made of rubber and is soft and muddy on the outside. So safe for your face and yours Eyes and whether you want to keep moving or just get started, our products suit you best. Enjoy our products now. Adjustable headband: For more comfort. You can easily adjust the length of the headband. Suitable for everyone, perfect for men or women, teenagers or kids over 13 years old, or even boxing coaches and anyone who wants to exercise. Everyone can exercise, lose weight, have fun or reduce stress. Increase Reaction Speed: When you hit this ball at reflex speed, it will bounce at high speed and at the same time your brain reaction time will be greatly improved day by day. Hand-eye coordination, timing, and shot accuracy are also improved. In addition, it is a great addition to your boxing gear or MMA gear. You just need it! Exercise whenever you want: love exercises from now on. With our boxing balls you can train anytime and anywhere. Perfect for work breaks, school holidays or other free time. Playing this ball will burn lots of calories and keep you fit! Helps you develop a normal lifestyle and body. Warm tips: 1. Wear the headband correctly on your head 2. Make sure the length of the string is the same as your arm length. 3. Start slowly and accelerate as you like. Package includes: 2 x boxing balls. 1 x elastic rope 1 x adjustable headband