Hydro-Orbs, a completely spherical crystal which has already been colored, Just add water, wait 3 hours, and you’ll be ready to create. Like our regular Crystals, Hydro-Orbs only release water when your flowers and plants need it, allowing longer life and vibrancy for them, with less worry for you. Hydro-Orbs come in 10 great colors allowing you to mix and match to your heart’s content. No need to reformulate or add food coloring to find the look you’re after, simply hydrate the colors you want and get to the fun part. Hydro-Orbs are truly unique, fun and stimulating to the touch.