Our LED Light Shoe Clip is made of PP plastic .It is a strong and durable material. The device features a U-shape with a solid curve and expanded heads at each end. The light clamps around the back heel of your running shoes by using the U-shape and the heads hold fast with a comfortable and close fit. Come with 7 LED colors including red, green, pink, yellow, blue and white to choose. You have an option of custom printing your logo to make your business successful.