ONLY FOR PELOTON BIKES: The cages are designed for Peloton bike pedals ONLY. Please make sure that your Peloton pedals come with 4 reserved holes before purchase. DUAL FUNCTION: It can convert Look Delta pedals to dual-function pedals, which is great for people who may prefer riding with clipless shoes. With this cage set, you can exercise with your sneakers or runners on your Peloton with an enhanced riding experience and get the most out of the workout. PRO-QUALITY WITH PATENTED DESIGN: Made of engineering thermal plastic for better longevity and durability, which also requires less maintenance than other materials. It is lightweight and resistant to corrosion, rust and weathering.