Listing is for a set of 4 carbon fiber trim pieces that can be applied to the wheel wells of your vehicle. The kit comes with four 3/4'' wide by 6' long trim pieces. Pieces are made of a flexible carbon fiber plastic trim that are made to withstand all weather elements. Installation is very easy and takes about 20 minutes, ADDITIONAL TRIMMING is required. This can be done with a simple pair of scissors, razor, knife etc. Product is backed with strong 3M adhesive so installation is easy and requires no drilling or screws.