"The lids rarely go on straight the first try, you have to really look to line up the threads right. When you shake up the contents it leaks out all over the place, a lot. The lids also have a place to label them, but it’s hard to wash any writing off because of the texture in this area. The words on both the lids and the cups (labeling info and measurement marks) are very hard to see. Would not recommend these."