The SPYRA SpyraColor Water Dye is a must-have for water blaster enthusiasts. With just one cube, you can dye up to 5 gallons of water for endless colorful fun. The dye is washable, odorless, non-toxic, and biodegradable, making it safe for both kids and the environment. Get ready to take your water battles to the next level with vibrant, long-lasting colors that won't fade or stain.