Allied® Suction Canister for use with OptiVac® aspirators, 1500 mL, 1 Case of 48 Nerve Sensory Eval * Square Toe Design acts Undercast Padding * Square Toe Design acts as a bumper to protect the toes and provides better universal left right fit * Ankle Strap seats foot firmly in shoe to reduce heel slippage and eliminate friction * Removable forefoot closure provides security while eliminating buckle pressure * Zoned outsole has an aggressive tread under the mid foot where traction is needed most * Removable Insole features twice the padding of standard insoles and can be modified as needed 970 mm Legs Open Internal Width preventing kinks and occlusions Audible snap gives clear confirmation that the lid is properly sealed and secure