Ecoflow Rigid Solar Panel Mounting Feet. Compatible with EcoFlow 100W and 400W Rigid Solar Panels.. An all-black design offers a low-key installation that blends in well with your roof. Lightweight and robust, crafted from anti-corrosive, waterproof aluminum alloy, suitable for long-term installation and use.. Package includes 4 × M6 hexagon screws, 4 × M6 spring washers, 4 × M6 flat washers, 4 × M6 large flat washers, 4 × M6 flange nuts.. Recommended Tools (Not Provided):. Adjustable Wrench. Tape Measure. Safety Glasses. Work Gloves. *The solar system should be installed, adjusted, and repaired by professional, qualified electrical maintenance personnel who are familiar with the installation structure and operation of solar panel installations.