Mountain Bike Pedals - MTB Magnesium Platform Pedals, CNC Steel Axle 9/16" (Black), iParaAiluRy material:Magnesium body + Steel Axle Bearing:3 sealed Cartridge Bearing,can bear 150kg of wieght Size:98*85*18mm,Weigh: 266g/pair,Surface treatment:Baking paint The pedals are designed for mountain bike riding,road bike riding and folding bike riding,downhill bike riding or stunt riding are not recommended Three months warrantly:If threr are any quality problems(besides human Intentional damage),you can email us and we will send you a new one.