Introducing the Powerlock Heavy Bag. This heavy bag is made with a superior PVC material exterior for long lasting durability and functionality. Filled with a mixture of sanitized recycled synthetic and natural fibers along with a high-grade sand-filled core provides resilient impact and shock absorption. This punching bag measures 13 inches in width and depth, and 40 inches in length and comes with a heavy duty chain assembly for hanging on a stand or properly installed heavy bag ceiling anchor. Train with confidence and power with the Powerlock Heavy Bag.