Best Gift For Kids:Boxing punch bag is a great way to introduce children to the sport of boxing.Not only encourages them to exercise but funning sport around the age of 4-10 years old kids. Adjustable Boxing Punch Bag: Adjust it as the height:You can adjust the height according to kids' age and height, the height range is 80-110 cm and it unisex design for kids Easy To Installtion:Between the two rods is connected and fixed with screws, use a tool to tighten it. You can use the screws to adjust the height of the boxing set. Tips Tips: Please fill the ball with 90% air to prevent the thread from strong impact to break. We recommend that the chassis be filled with sand to maintain its stability. If you must use water, please make sure to tighten the lid to prevent water leakage. ABREE Customer Service: We strive to provide you a high quality product and the best buying experience, if you are not completely satisfied, please contact us any time.