Goblies Play Paint for Water Guns is colorful goo that clings to skin and targets, but is still easy to wash off even after hours in the sun. Easily fill water guns with the convenient pour spout and add some color to your backyard battles! The product is nontoxic, biodegradable, and washable. Goblies Play Paint Goo for Water Guns is the perfect product for making messy memories with the whole family! Goblies products are specially designed so that the goo can be rinsed off with water (like rain). The Goblies goo will never dry, so it is easy to remove even after hours in the sun. Avoid getting Goblies Throwable Paintballs and Play Paint on surfaces that cannot be laundered (like outside cushions) and unfinished wood. If you are having trouble removing the color from any item, dish soap is our best recommendation. We recommend outdoor use and not using in pools. Product is washable and not intended for permanent artwork.