Rob Allen Constrictor Cord

The Rob Allen constrictor cord is a black polyester braid and is sold by the meter. We use this to tye the bridle balls in to the rubber when making up new speargun rubbers. After the bridle is pushed in the the required rubber, to prevent it from coming out when under stress, the constrictor cord is wraped around the end and tyed off using a vice or 2 pairs of pliers. There are different types of knots that you can use to do this, however the one that we use here at Dive Warehouse is the rolling hitch knot. Sold per Metre.