Elevate your boxing training with the SPEED BAG. Crafted from reinforced PU for exceptional durability, this 9"x6" speed bag features a replaceable bladder and natural latex valve for consistent inflation. Regular air additions are recommended to maintain optimal performance. DESIGN & FEATURES: Durable Construction: Crafted with reinforced PU for long-lasting durability Replaceable Bladder: Features a replaceable bladder for easy maintenance Consistent Inflation: Changeable natural latex valve ensures consistent inflation Optimal Performance: Regular air additions recommended to maintain peak performance