Chemical light Delphin NEON is a useful accessory when fishing in the darkness. There are two lengths available. Each package includes two chemical lights and one holder (rubber spool). The usage of this light is very easy as breaking the yellow part inside starts a chemical reaction that makes it shine. For equal distribution of the light we recommend to shake the light after breaking the yellow part. There are 5O packs of two pieces in one colourful box. The product is nontoxic and non-flammable.