Hand Lead Line 30 Meters of 2.5mm Line & 0.5Kg Weight

30 meter hand line with coloured meter markings to take depth soundings. 500 gram weight has a hollow at the bottom for tallow to bring up part of the bottom sediment sand, pebbles, clay, shells or if the plummet comes up clean, it means the bottom is rock. 

Line diameter 2.5mm