"Holts Tyreweld" in fact.(1) On the tin it says "in 1/4 of a turn seals and inflates" "Fast clean and effortless" Well it would have been, if on removing the nozzle the whole fucking load of "weld" hadn't shout out of the tyre all over my legs and chest.(2) 1. £9 a go, as Champ recently found out. 2. It did look nice as it blew around the petrol station in huge cotton wool like sea.