Black. Fix, clamp and route electrical cables with this pack of 50 cable cleats. Suitable for round cable of up to 17.8mm in diameter, they're robust and so easy to work with - perfect for tidy and efficient cable management. Suitable for cable diameters of up to 17.8mm. Made from low density polyethylene. High strength and impact resistance. Temperature range of -35degC to 105degC. UV and corrosion resistance. Suitable for indoor and outdoor use. UniStrand UNICC7, A heavy-duty plastic cleat for securing large diameter cables. UniStrand No 7 17.8mm Cable Dia Cleat.