If you are like me and a daily commuter and suffer punctures then buy this kit. I have used this brand of repair kit over the past year, I get on average 10 punctures a month and having used other brands can highly recommend this one. The best item in this kit are the patches, they are made up of a flexible plastic/fibreglass material sandwiched between layers of rubber. If you get a puncture make sure you fit the tyre and tube in exactly the same place and if you haven't removed all of the glass, that's what causes most of my punctures, have no fear it will not penetrate the patch. I also find that my tube starts sticking out the splits in the tyre caused by the glass cutting the tyre and again if these patches are fitted under the split then it doesn't stick through. This puncture repair kit in my opinion is excellent value for money and you should buy them before they put up the price, I just bought 4!!!!