Multi-groove fiberglass fish tape. Features a low-friction, easy feed design. The grooved profile and fiberglass core provide rigidity for long distances and less surface contact with wires when pushing through crowded conduit. Durable 7-inch spiral steel leader helps push through crowded conduit. The 17-inch case diameter means you can reel in 10% more tape in a single revolution vs. a 16-inch case. Raised finger grips help transfer 100% of the winding power from your hand and fingers. The unique sloped handle optimizes the position of your hand for quick hand-over-hand rewinds and allows a more level payout of tape on the backswing while feeding conduit.