Tru-Flate 15-206 Tire Repair Insert Tru-Flate's String Repair Inserts feature a super sticky adhesive and excellent flexibility and compressibility to ensure an air-tight seal on most tread punctures For emergency repairs to most auto and truck radial and bias-ply tires For safety reasons, a punctured tire should always be removed from the rim to allow inspection of the inner tire surface for hidden damage that could cause the tire to fail unexpectedly Inserts are 7 inches long Box of 50