Specifications Hign-concerned Chemical:None Type:Ultralight Pedal Size:9 16 Model Number:RK573 Pedal Category:Ultralight Pedal Pedal Device Category:Bearing Use:Cruisers,Mountain Bikes,Road Bicycles Material:Nyoln Origin:Mainland China Material & DURABLE: High quality impact resistant nyloncomposite high strength Cr-Mo spindle bike pedals, which has shock-proof, abrasion and corrosion resistance WIDE PEDALS GOOD GRIPS:92mm length 107mm width 363g weight ,16 studs Aluminum ANTI-SKID traction pins per pedal,for increased grip and control Make riding safer for efficiency pedaling.The platform pedals spindle was completed sealed to prevents water and dust from entering. GREAT GRIPS: Anti-skid nails on each side provide more secure on the pedals and hold your feet in place. Even if they are covered with a thick layer of mud after a muddy ride, you don't worry your feet slipping off the pedals EASY TO INSTALL: Standard 9 16 spindle fits common size for ordinary bicycles special sizes are not available , for BMX, MTB, Mountain Bike, Hybrid bike, Old School, Cruiser, Cyclocross Bike, Dirt Jumper, Folding Bike, Road Bike- Touring, Track Bike, Unicycle, Urban Bike - Fixed Gear Manufacturer Warranty: 1 years, Any quality problems, please feel free to contact us. We will try out best to solve it.