Material:plasticfront size: length about 30cm width about 4.5cmrear size: length about 40cm width about 4.5cmProtect the fork stanchions and bridge of your bike from dirt and grime, and reduce the need for cleaning and servicing.Made of durable material,long time use.design for better protection.Easy installation,no tools neededThis kind of bike fender is easy to install and disassemble.It is light weight and not easy to be out of shape.