Splat Marks the Spot! JT SplatMaster Ammo fills are specifically designed for quick and easy clean up with water, while being resistant to staining. The shells are made of gelatin - what does that mean? It means it is like a vitamin E pill and will essentially disappear with some water. After a day of playing JT SplatMaster, simply break out the hose and rinse off your targets and tada...clean. Only use JT SplatMaster Ammo with your JT SplatMasters. Get in the Game. Features:Water soluble splat marks clean up fast and easy100% bio-degradable formulasStain resistant fillFun, safe, and accurate!Endless shooting games and back yard fun