Contesub Shark Tensioning Hook provides a super strong anchor point for pre or post tensioning of lines on roller spearguns.

Made entirely form 3mm thick quality stainless steel. The fin is cut and polished smooth to not damage lines and TIG welded to the base.

It is fixed to the underside of the speargun using the 4X19 self-tapping screws provided or with threaded insert system - metric screw (M4, sold separately).