Pro Expert Water Punching Bag - Heavy-Duty Waterproof - Bull Doza Fight Wear. Heavy-Duty Design: Our Pro Expert Water Bags are made of the highest-grade vinyl that ensures more durability and resilience. The ultra-thick vinyl material allows our water bag to remain rounder all year round for more practicality. The bag is UV resistant and waterproof, making it reliable and long-lasting. What you Get: The complete set includes a Bull Doza Fight Wear Pro Expert Water training bag, as well as the accessories required for quick and easy filling: 12mm steel D-shackle, 1/2 hose pipe filling nozzle, and detailed instructions.Optimal Solution: Train like never before with the Bull Doza Fight Wear Pro Expert Water Punch Bag! Unlike anything else on the market, this heavy boxing bag is designed for Uppercuts, Dempsey rolls, Power Punches, Long Combos, and other demanding boxing-related exercises that can help you to increase your punching power and more. Indestructible to Blunt Force: The vinyl Pro Expert waterproof punch bag is flexible at room temperature. If the bag is stored in cold temperatures (8 degrees or lower) and goes firm, bring it back to room temperature to re-soften. The water boxing bag has an advanced leakproof valve for a secure practice session and a hardened top. PLEASE NOTE: The punch bag must be mounted to a very robust surface, e. The mount point should be professionally installed and rated for the bag's weight. Approved by Professionals: The unique design of our Pro Expert heavy boxing bag absorbs your punches, allowing you to train harder and longer. The punch absorption and additional weight ensure much less movement than a traditional punching bag, so you can develop new and powerful combos that would not have been feasible with other equipment.