This tubeless rim-strip makes tubeless conversions easy and quick. Unlike its butyl predecessors (from other brands), Effetto Caffélatex rim-strip is very light, puncture-proof and transparent, made using a proprietary polymer blend.Each Effetto Caffélatex rim-strip kit contains:2x rim strips2x 40mm tubeless valves.Mounting instructions are shown on the back of the header card.Why a Strip when we already have a tubeless conversion tape?For some applications, the tape is great and it will always be lighter than a strip (8g against 29g per wheel... a butyl strip is around 65g). However, the tape takes time and some care/experience to be installed properly. There are then some applications where the tape simply won't work, such as with new cut-out rims for new Plus and Fat size rims.