Experience a realistic boxing workout with the Costway 21 Inch Water Punching Bag. Crafted from high-rebound PVC material, this punching bag offers comfort and durability. The adjustable metal chain allows for versatility in hanging, making it suitable for various training environments, including the gym, office, and outdoors. Its innovative water-filling design mimics a real boxing experience, and it is recommended to fill it with 70%-80% water for optimal performance. This unisex punching bag comes complete with accessories for easy setup and pairs well with a variety of other boxing equipment.