Good product These work fine. You have to be careful when putting the seal on, not to push down too hard. The cup is kind of thin, it easily collapses.

Supee Great Update: These were sturdy and a big hit at our event. The lids fit securely. They were surprisingly sturdy and even stood up to use by my four young children (cups don’t typically last long with them). We used these as our cups at our breakfast and snack table and they were MUCH less expensive than setting out water bottles. Our guests who were speaking even remarked about the attention to detail having covered cups, and colorful straws that matched our theme, available to carry between rooms…