Vittoria Air-Liner Tubeless Road Kit – 2 Inserts Tire Sealant Pliers and Clips Medium 28mm. The Air-Liner Tubeless Road Kit is the Vittoria all-in-one package for the best experience on your tubeless tires. The kit contains two Air-Liner Road inserts one Universal Tubeless Tire Sealant bottle and the Road Tubeless Tool-kit – pliers and clips for easy tubeless tire removal.