Need a reliable emergency tire repair solution? The AA 4in Black Tire Repair Plug Insert is a USA-made, self-vulcanizing plug designed for quick, effective fixes. Available in standard (1/4in - 12-391) and skinny (1/5in - 12-391S) sizes, these plugs are perfect for tubeless and radial tires on lawn tractors, golf carts, ATVs, and other off-road vehicles. Made from durable butyl rubber, they easily insert into steel-belted radials, providing strong, long-lasting repairs. Each box contains 50 plugs, making it ideal for tire techs and mechanics in need of a cost-effective, high-quality repair supply.