This Panduit MPMS25-C0 cable tie masonry push mount is made of weather-resistant nylon 6.6 and is pressed into a 0.25" diameter masonry hole that is at least 0.97" deep. An insertion slot in the head accepts Panduit type M, I, and S cable ties (not included). This black-colored masonry push mount is European Conformity (CE) compliant for quality assurance, complies with Restriction of Hazardous Substances (RoHS) regulations, and is suitable for use in securing and bundling electrical cables in outdoor locations.Panduit manufacturers power, communications, computing, control, and security system products. The company, founded in 1955, is headquartered in Tinley Park, IL.