<b>【Better Customer Srvice And After Sales】：If You Meet Any Problems, We Will Reply In The First Time And Try Our Best To Help You And Brand New Replacement Post Within 24 Hours If Any Defective Item When Receive .</b><p> <b>Note: To prevent rust on the screw surface, a layer of maintenance oil will be attached to the screw surface when leaving the factory. There will be a slight smell. This is to better protect the screw and will not affect your use at all.</b>