Adjustable and comfortable fit: the neck training head harness has adjustable straps to accommodate various head sizes, providing a secure and comfortable fit. It targets neck and upper back muscles to improve strength and endurance for diverse sports activities. Breathable polyester material: made from soft, breathable polyester for comfort during use. The side edging enhances aesthetics and helps prevent chafing and abrasions from the metal rings during workouts. Secure weight attachment: features a chain that securely holds weights in place during training. Suitable for both men and women. Dimensions: 20 cm x 6 cm x 7 cm (7.87 in x 2.36 in x 2.76 in). Essential for muscle strengthening: suitable for athletes such as boxers, football players, bodybuilders, weightlifters, taekwondo practitioners, and water sports enthusiasts. Helps strengthen neck and upper back muscles to improve overall athletic performance. Use scenarios: Boxing or MMA training to build neck and upper back strength for better head stability and injury prevention. Weightlifting, football, or taekwondo sessions to increase neck endurance during intense workouts. Water sports practice (surfing, wakeboarding, swimming) to stabilize the head and neck in dynamic conditions.