This punching bag is delivered empty. We recommend filling it with textiles like old clothes or recycled scraps of cloth, sand etc that you may find at your local paint stores. You?d be surprised how quickly the weight adds up! Once properly filled, this bag can weigh between 25-50 kg / 55- 110 pounds. If you need a bit more weight, fill a bag with sand, wrap it in textiles and place it towards the bottom of the bag.