The 2 Pack 9 ounce insulator cup set features 2 insulated, spill-proof cups that keep drinks cool and fresh longer than ordinary spill-proof cups. The 9 ounce Insulator Spill-Proof Cup, like all Playtex Spill-Proof Cups, uses the patented SipEase One Piece Silicone Valve which features "Sweat-proof" design to protect furniture from moisture. The cup lid has a convenient valve storage feature and is interchangeable with all Playtex spill-proof cups and leak-proof straw bottles. Colors may vary. Legal Statements: "Warning: To Avoid Injury, Do Not Let Child Walk Or Run While Carrying Cup "Playtex