For buggies. With extra-safe puncture protection. The Puncture Guard protection belt is based on the SmartGuard principle of the Marathon Plus. It has been reduced a little for use in the Kid Plus. The layer is not quite so elastic and not quite so thick (ca. 3 mm). The special tread compound Black'n'Roll will not leave unsightly skid marks on floors. A quailty tyre for a buggy. These are so much more resistant to puncturing than the tyres that buggy's come fitted with. Save hassle and money. Ask for a deal when you get rubber all round.