These water gels will burst when impacted, and it's made of non-toxic, environmentally friendly materials. No need to recycle beads, the pieces will automatically evaporate and disappear without polluting. Perfect suitable for splatter ball toygun to replenish. The package is tiny, so you can take the gel balls anywhere you want. Soak the gel ball in water for 2-5 hours before you use it, they will expand to 7-8 mm. Store the water balls in an airtight container and submerge them in water, away from the elements and direct sunlight, the water bead toygun will last up to 3 months. Not only for automatic gel toygun,but also suitable for home decorations, wedding center decorations, plant decorations, tactile toys, vase filler, preschool kids activities, etc 1 Bottle of 20000 water balls beads. More fun and lasting passion in the shooting games.