Waterproof Rubber Pad: The bracket comes with 4 pieces of waterproof EPDM rubber pads, no need for additional reinforcement, more waterproof,, sturdy and : lightweight aluminum alloy with excellent resistance and weather resistance; and equipped with four stainless steel screws, which are often used on any regular or irregular surface, easy to transport, and stable to install Multi-purpose: Can be installed in various places such as yachts,, industries, houses, tin sheds Screw hole design: The photovoltaic guide has 10 screw holes, which can be installed in any hole according to your angle, so that the direction of guide is more suitable for your needs We two length sizes ( 300mm / 400mm : Solar mounting accessories, roof accessories for garden houses, garage roofs, sheds with corrugated iron roofs, Manufacturer: Kaeltsyn