Dive Sign Gulfman Depth Gauge for Shore Fishing Pink Long-distance cast cage fishing, sea fishing pond, pier fishing item Sunny Shokai Gulfman Dive Sign Color: Pink "Dive Sign" is a depth gauge for shore fishing. Attach it to the top of a float and cast it to the point where you want to measure the depth, and you can accurately measure the depth in one go. Usable with PE lines 1-8, nylon lines 3-8, floats of size 2 or larger (fixed type not allowed) and sinkers of size 8 or larger (size 10 or larger recommended). If you tie the float stopper thread in advance (tie it loosely enough to move it up and down slightly), you can determine the fishing depth in one shot (tighten the float stopper thread once you've set the depth). An essential item for cage fishing and sea fishing ponds!