The manufacturer’s new line of tape measures include nine magnetic tape measures and nine non-magnetic tape measures, varying in lengths from 16 to 35 feet in imperial, and five to 10 meters in metric. One magnet holds the hook in the front of the tape to the edge of the material; the other magnet secures the tape to the material from below. The design securely holds the tape in place and prevents roll off. Milwaukee Tool. WOC Booth CES4