Panduit MPMS19-C0 Masonry Push Mounts are used to secure wire, cable or tubing to masonry surfaces. They install quickly into pre-drilled holes, using a fir tree hold mounting method. Are 0.97” x 0.25” (24.6mm x 6.4mm) in size and require a hole diameter of 0.19” (4.8mm) for mounting. For use in indoor and outdoor environments and with miniature, intermediate and standard cable ties. Made of impact modified Weather Resistant Nylon 6.6, are black in color and come in packages of 100.