All items have been used infrequently. This is a set of a thermos and a mug, each with three different types of drinking spouts. The water bottle for cold drinks has some minor stains as shown in image 4. The lids of all three are clean. The straw spouts and gaskets were yellowed with tea stains from barley tea, so I bleached them, but couldn't remove them completely. If you are concerned, please use the replacement straws included in the set. The replacement straws have been opened, but the contents are unused. Also, please understand that this is a personal inspection, so there may be oversights. Please purchase only if you understand the above points. Thank you for looking.