Black Jack conforms to the shape of the injury, unlike hard-cured repairs that force the injury to conform to the shape of the plug. Black Jack conforms to the size and shape of the injury and eliminates stress to the belts and preserve the tire body while completely sealing out moisture and dirt. Features: * Professionally engineered heavy duty high impact molded case with industrial strength latch * Instruction guide permanently adhered to inner lid * Heavy duty chrome T-Handle with replaceable needle * Hardened steel set screw holds needle or probe in place without stripping * Spiral designed probe cleans injury without causing additional stress on tire * Chrome plated open-eyed insertion needle * Plug insertion lube makes inserting probe and repair easy * Twenty permanent repair plus, 4 inches long with carbon black added to strengthen repairs and match color of the tire * Manufactured for the professional What"s In The Box: * (2) professional quality chrome tools * (20) Black Jack self vulcanizing 4-inch plugs * (1) 2 oz. jar of plug lube