Professional Boxing Punching Bag with Stand, Boxing Bag for Adults and Teens. Features ? Freestanding punching bag is a kind of self-supporting boxing training equipment. ? Designed with reinforced springs for strong rebound, it helps improve punching speed and muscle elasticity, also suitable for aerobic exercise. ? The punching bag kit comes with an adjustable stand, suitable for people of different ages and heights. ? The base can be filled with water or sand to maintain stability. It's recommended to fill with sand for better stability. ? The boxing training equipment allows you to train in your home or gym, helps users improve reaction, speed, accuracy, and striking ability, suitable for both beginners and experienced individuals. High Quality Products ? With premium material&workmanship, improving the inflatable punching bag quality ? Anti-loose fixation screw ? Heavy-duty steel tube ? Large capacity base, easy to set up Installation Steps ?. Fill the base with water or sand and tighten the waterproof cover ?. Connect the two rods until the clips are fixed ?. Inflate and install the punching ball ?. Enjoy your punching experience Specifications: Product size: 19.7*17.7*5.1 inches(50*45*13cm) Package Weight: 3.56kg Height adjustment from: 48"- 58" Material: PU leather, steel spring, steel tube frame, plastic height adjustment valve Package includes: A set of free standing boxing speed ball equipment, a pair of gloves and a inflatable pump Train like a champ at home or in a professional gym with the AUZOSL Reflex Bag. The speed ball is in exquisite packaging, making it a great idea as a gift. It’s a great choice to give it to yourself or to others!