Pike Pro flavoured liquid Oils are supplied in a simple spray applicator bottle, are a great way to add both colour and flavour to your bait. Instantly change both the flavour and the colour of your deadbait in one easy step.  Yellow - Mackerel flavour dye.  Long-lasting 50ml spray cap bottles. Product Usage: Simply attach your deadbait to your trace and whilst holding the trace at arms length or in a suitable tray apply the liquid oil from the spray bottle. Leave the dye for 30-seconds to soak in to the surface of the bait and you are ready to cast out.