We have a strict quality control system to ensure a stable quality Rain Gutter Extensions Fits For JL 2018 2019 2020 Accessories Once install this rain gutter extensions, water should run down the windshield pillar,they are going to work very well on stopping the rain from running inside the door when its open during the rain Made of ABS engineering materials, high temperature resistance, low temperature resistance, and long service life Package come with 2 pieces rain gutter extensions, self-adhesive installationvery simple to use