This innovative product from Roisub offers a simple and effective solution for trimming and balancing your speargun.

Black coated lead weight, 60g in total, with peel off adhesive backing and 2 secondary O-rings included, for added security.

Can be used wholly, or separated according to need and positioned at any point along the barrel for trimming and balancing.'

Concave on the back to suit round barrels, but can easily be flattened for wood or other shaped spearguns.

Has set marked divisions in 5g or 10g for precision balancing and fine tuning of your speargun.