Portable: Can be easily carried wherever you are. Package includes: 1x fight ball, 1x headband. Adjustable: Can be adjusted to fit different head sizes. Boxing ball: Get a training boxing ball. Compact workout: Can help train your reaction, agility, punching speed, fight skill and hand eye coordination. Headband size: 47cm (L) x 3.8cm (W). | Training Boxing Ball | Wowcher