A disc in soft, strong silicone. Turn it backwards
and it will create a lot of turbulence around the fly.
Turn it forwards to get a erratic swimming effect. Cutting lines premoulded so it can be cut to desired size.
Available in 4 sizes:
Small: 6mm (10 pcs)
Medium: 8mm (9 pcs)
Large: 10mm (8 pcs)
Xlarge: 12mm (7 pcs)