Needoh Lava Instant Slime By Schylling. Ooey-Gooey Excitement Awaits! Young Scientists Can Use This Super-Cool Slime Kit To Whip Up Some Seriously Slimy Fun In Seconds. Just Add Water, Give It A Good Stir, And There You Have It! A Groovy Lava-Like Glob That'S Perfect For Sensory Play.