The DI-PXX are hard plastic spheres built to burst on impact. They are filled with enough capsaicin powder to irritate all 5 senses effectively. The LR-PXX are filled with ten times the standard amount of irritant, for a total 5.0% PAVA payload that will incapacitate more violent suspects, more effectively, more quickly. Allowing for more subjects subdues and less rounds down range.