This is a set of straw mugs from Combi and Munchkin. My baby didn't take to the bottle, and they wouldn't use these either. The Combi mug was washed after I put water in it to try it once. The Munchkin mug is completely unused. Neither has been put in their mouth. Combi ・Made in Japan, for babies around 4 months old ・Push straw that dispenses liquid just by sucking ・W Rakupita structure to prevent leaks ・The spout and gasket are integrated for easy cleaning Munchkin For first-time straw drinkers! The straw moves, so it catches the liquid at any angle! ・Weighted straw allows drinking from any angle ・"Click" sound when the lid is securely closed! Prevents forgetting to close the lid ・Includes a brush for cleaning the straw