Extra heavy kneadable Downforce Tungsten Putty that can be used as a counterweight to make a pop-up float just above the bottom. In addition, you can use (a piece of) Downforce Tungsten Putty to give your rig just that little bit more sinking power or to position the hooklink tightly against the bottom. In this way the “last meter” of your entire assembly will lie flat on the bottom. Perfect for use with the Bottomliners from PB Products. These provide extra grip for the Tungsten Putty. The PB Products Downforce Tungsten Putty sticks very well and is easy to knead/roll into shape. Nothing is as universal as Putty. Any shape, any surface and always adjustable in weight!