Permanent, laser etched 1' increments on the tape allow you to more accurately measure the depth of conduit runs and determine the amount of tape left to pay out. Tempered, high quality tape keeps its stability as it glides between surfaces for effective pushing and pulling of wire under carpets, through insulated walls and over suspended ceilings. 25' length is perfect for short wire runs associated with light commercial, residential and voice-data-video-audio installations. Cat. No. 56005 has a no-snag plastic tip.