1.Steel Replacement Fish Tapes 2. Material:Nylon and Steel for select 3. Length:6 sizes: 5m, 10m, 15m, 20m, 25m 30m Steel Replacement Fish Tapes feature permanent laser-etched markings for more accurate measuring of conduit runs. Available in 6 sizes: 5m, 10m, 15m, 20m, 25m, 30m.Permanent, laser etched 1 ft increments on the tape allow you to more accurately measure the depth of conduit runs ...