Pro-Stim Liver Air Ball Pop Ups These air ball pop-ups are colour-matched to our Pro-Stim Liver, are very buoyant and durable enough to withstand the unwanted attraction of nuisance fish. Pro-Stim Liver Air Ball Pop Up Properties: Extremely buoyant and durable Powerful spicy garlic sausage aroma with rich liver undertone Packed with intense, soluble attractors to maximise leakage Easy to trim to create the desired buoyancy Colour-matched to Pro-Stim Liver Boilies Contains the same base mix & liquids as Pro-Stim Liver Boilies