Packaging: 1 x two-way solar conduit, dimensions: 11 x 9.5 x 4 cm, for cables from 3 to 12 mm in diameter. High quality: the camper roof grommets are made of industrial grade ABS plastic, UV resistant, aging, moisture-proof, corrosion-resistant, sturdy and durable for normal use in extreme storm conditions. Strong waterproof performance: IP68 waterproof, excellent performance waterproof, with silicone sealing ring to prevent internal splashing and dust accumulation, can be used for a long term. Easy to install: just pass the solar cable through through the solar cable channel and tighten the cover, with grooves in the bottom, easy to install with glue on the panel/roof, assembly without drilling, no need to damage the roof or deck of the campsite - because, safe and beautiful, easy to remove. Wide range of applications: ideal for installing solar panels in motorhomes, caravans, vehicles, boats, yachts, garages, cottages, houses , gardens, etc. It can also be used to install photovoltaic panels on a flat roof.