High Quality: Made of sturdy industrial-grade ABS plastic, with ultra-strong UV resistance, moisture resistance and drop resistance, it can also maintain maximum durability under extreme weather conditions. Specifications: 6mm to 12mm cable gland diameter, IP68 waterproof. Highly Waterproof: Ultra-high waterproof level, IP68 waterproof, the design of the sealing ring The waterproof silicone ring increases water resistance and has strong corrosion resistance. It can be used for a long time without deformation or yellowing. Easy installation: No need to drill holes on the roof or deck of the RV during installation. It is installed with glue, which is safe, beautiful and easy to disassemble. Excellent waterproofing: Ultra-high waterproof level, IP68 waterproof, the waterproof silicone sealing ring design increases water resistance. water and has strong corrosion resistance. It can be used for a long time without deformation or yellowing.