Made of thermoplastic elastomer (TPE) material, U-shaped spring steel embedded inside, hard and no deformation, waterproof.Total length 5m, which is enough to cover entire edges of 4 doors. Suitable for all sedans and SUVs. But, it is not suitable for the edge thickness more than 5mm or less than 3mm.The trim strip is very soft, can be cut freely. The trim strip is 2mm thick and 8mm deep.Before purchase, please make sure your car has enough space to install it.The trim steel U-shaped spring can be clamped tightly on doors without batter. It will not fall off when washing the car with a high pressure water gun. And won't leave any marks when disassembled.Perfect for protecting the edge of the car door when opening in the garage or tight parking lot.InstructionsRemove a piece of steel from the trim strip, make the top of the trim strip easily attach to an uneven corner. Make sure the door is clean before installation.Starting at the top, insert the trim strip around the edge of your door until it is snug.Using tools to gently tap the strip, making it fully tight to the door.ApplicationThe metal edge of the main body between the door and the body of the vehicle.In the door of the car and more from the outer edge.In the window above the car.Trunk door .Car hood.Quantity delivered: 1 piece