Car seat gap fillers come in a set of two pieces. Gap fillers are made of a premium synthetic PU leather which is durable and eye catching. These universal gap fillers are designed to fit in the gaps of your 2018 Audi RS3. Gap fillers measure 11.8” x 4.3” x 2” inches we encourage you to make sure this size will work for your gap space so you can stop dropping unwanted items between your seat. Gap seat filler comes in a verity of colors.