D-Stak (add-on Weights)
The D-Stak add-on weights can be used with any NiteLite illuminating hanger to suit fishing conditions.
Their low height means they can be stacked together easily, to give you the required amount of weight.
They have a 2BA thread so can be used with other manufacturers' bobbins if required.
PRICE - £7.49 (Pack of 6 x 5g black)