XIANQI Product Description: Quantity: 1set Color: black Anti-Rust Strong Bearing Force-- Constructed from aluminium alloy, not easy to deform, anti-corrosion and durable. The thickness of these foot pedal is 20mm, thickened design provides superior bearing force even when you're standing on it. Protect Relax Your Feet-- The unfold size of these small rear pedals measure 3.1x1.6" / 8cmx4cm, please note that it is mini bike rear pedals, suitable for teenagers. Replace these pedals on bike, protecting the feet of the people who is on rear seat of the bike to prevent from touching the vehicle wheel, more convenient and safe. It will also not make you feel acid even long sit on the bike. Suitable for folding mountain bike, foldable bicycle. Anti Slip Folding Design-- Surface corrugated grooves can dtably grip on your shoes during riding. The front part of the pedal is provided with a groove, can be folded up when riding the bike without a person, and will not scratch objects or other people. Unfold it when you need to rest your feet. Easy Firm Installation-- Equipped with mounting gasket, it is installed more firmly to prevent loosening. Simple to use, first add a spring washer to fix the front section and lock the screw, and then fix the rear end to complete the installation. Package Included5*20mm Allen*2, 5*25mm Allen*2, Spring washer*4, Flat washer*4, Lengthened 4mm Allen wrench*1, 6*20mm Allen*2, 6*25mm Allen*2, Lengthened 5mm Allen wrench*1