120 Insert 4" Brown Tire Repair Strings - Self Vulcanizing Tire Plug String Inserts for Tire Plug Kits - Fix A Flat Effortlessly - Made in USA

Sherco Automotive & Marine Supplies 4" Brown Tire Repair Inserts 100% Self Vulcanizing 4" Tire Plugs. Full 12 Strand Universal String-Type Inserts are an excellent emergency repair. Made of a butyl rubber, these inserts are very strong, allowing easy insertion through steel belted radials. Perfect for repairing For Tubeless & Radial Tires on lawn tractor, golf cart, ATV, and other off-road tires. Made In USA

• 4" Brown Self-Vulcanizing Tire Plug Strings – Designed for quick, reliable puncture repair in tubeless tires without needing extra adhesive.
• High-Tensile Butyl Rubber Construction – Expands and seals securely inside the puncture channel for strong, long-lasting results.
• Compatible with Steel-Belted Radials – Safe for use without damaging internal belt layers, ideal for modern tire designs.
• Versatile Use Across Vehicle Types – Suitable for cars, trucks, trailers, ATVs, UTVs, golf carts, and lawn equipment.
• Made in USA – Shop & Fleet Trusted – Trusted by tire shops and fleet services; meets or exceeds SAE J1292 standards.