ONLY FOR PELOTON EXERCISE BIKES: The cages are specially designed for Peloton bikes pedals ONLY. (Please check if your Peloton pedals come with 4 reserved holes at the back). Compatible with Peloton Bike and Bike+. Please note: NOT compatible with all other brand pedals.<br/>DUAL FUNCTION: Riding with Look Delta style clipless shoes: More efficient energy transfer to pedals. Or using those cages (toe clips) to convert the Peloton pedals to Look Delta & cage pedals dual function pedals for sneakers.<br/>STRONG: The adapter is made of strong high quality alloy for durability. The cage is made of engineering thermal plastic.<br/>VIDEO INSTRUCTION: Please watch our video in the listing to check more detailed instructions. Total Weight: 350g or 12.3 oz /pair. Cage size: 130mm to 145mm x 85 mm. USA PATENTED: We specially designed and developed those useful adapters. US Patent pending. <br/>