Fat Brain Toys | Suction KupzStack, roll, stick, and sip! Each of these six colorful, squishy cups features a suction cup on the bottom, a suctioning brim at the top, plus endless creative play possibilities all around. Bring them in the tub for scooping, pouring, and floating. Stick them to windows, walls, tables, and floors for whatever creative endeavors your child's imagination can conjure. Or just use them to drink your juice. Made entirely of 100% silicone that's food safe