The First Choice for Outdoor Games: The biodegradable water-filled gel ball used in this Splatter Ball Blaster will burst into a pile of small fragments after impact, and will disappear completely after drying. It is not only environmentally friendly but also requires no cleaning. Let you enjoy outdoor fun games Time! - Safety Instructions: 12 years old and above. **This is a toy that is driven by a spring and uses a gel ball as ammunition.**