CNC aluminum alloy,High Quality & ,which is to oxidation and provides a strong and decorative material for grids, also Higher density than aluminum alloy,which mean can provide greater durability. The Grid design helps to completely reduce air resistance and to fully feel the pleasure of speed. The radiator guard is designed along the radiator so that can protect the radiator securely and effectively. As the time increases, sandstone, and catkins accumulate on the of the radiator of the water tank, the radiator can block these foreign objects. Radiator guards for 400 are gonna do just that they are gonna guard your radiator from any kind of debris being spun from your front wheel ,they are gonna keep all of your radiator fluid where it belongs inside your radiator and not dumping out in the street which could cause you to have an accident. Fitment:For Z400 2017-2023 For Ninja400 2017-2023 Color: black Material: aluminum alloy Package Contents: 1 x Motorcycle Radiator Protective cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.