Count down to your favorite holiday with the 10 Days of Gue Sweet Retreat Countdown Calendar. This variety pack features 20 jars of pre-made slime with 10 different varieties and mix-ins—making each day a sweet surprise! Elmer's Gue is a slime that comes ready to play out of its container. Meanwhile, the mix-ins change the texture or add fun effects to your slime, for a candy-inspired thrill. Stretch it, squish it, twist it; explore all the fun ways to play with Elmer's Gue!