Superior Material: The drainage clip is made of polymer plastic, aging resistant, high and low temperature resistant, lightweight but sturdy. Long-term use in harsh environments is not easy to break or corrode and lasts longer. Ergonomic Design: The photovoltaic module cleaning clips are designed for the underside of the middle and the slightly upper side. When it rains, the rainwater automatically washes away dirt from the edges or corners of the panel and directs it to the drain, effectively increasing the electricity generation of the photovoltaic panel and extending the life of the panel. Ease of Use: Firstly, clean the entire surface of the photovoltaic panel, attach the water clip to the bottom edge of the panel, no other tools are needed, easy installation. When it rains, dust does not stay on the solar panels. (Note: To prevent the panel glass from being trampled, you can use a photovoltaic panel protection mat) Applicable Size: The photovoltaic panel drainage clip has an automatic closing function. The length is about 70mm and the thickness is 35mm (Note: the width is based on the thickness of the aluminum alloy frame). A combined set of 20 pieces can meet your daily replacement needs. Wide Use: The panel cleaning clips can be widely used for solar panels, installed in homes, trailers, boats, campers or yachts, traffic lights and indicator lights, etc. multifunctional clips bring more convenience to your life!