Permanent, laser etched 1-Feet increments on the tape * More accurately measure the depth of conduit runs and determine the amount of tape left to pay out * Polypropylene case and handle are extremely durable, offer maximum in shock and impact resistance * Raised finger grips help transfer 100-Percent of the winding power from your hand and fingers * Round inner ring design provides a smooth, consistent and comfortable surface for winding and rewinding