Buoyant imitation maize, soft enough to use on the hook or hair rig that is resistant to the attentions of nuisance species including Crayfish. Pop Up maize is best fished on a hair rig over a bed of real maize or corn. It can be used popped up on its own or in conjunction with real maize, to produce a critically balanced hook bait.
As a guide: 1 larger grain will pop up a size 8 Carp hook.
Note: Although the buoyancy of individual grains may vary slightly it will remain the same, even after prolonged use.