They work great with the Sam's Club members mark 20 oz. cups. I just wish all the Sam's Clubs carried them.

I like the lids but I find they easily pop off the cup. So as long as I’m mindful of that I don’t really have to much of an issue.

I have been using these lis for 7 years. I've never experienced a bad batch. They are reliable and fit Members Mark cups perfectly

Great for spill prevention, especially with the grandchildren. Also, the Member's Mark cups and lids are great for the swimming pool area.

Along with other reviews, I wish these lids were carried in the store but, that is my only negative comment. They arrived quickly and fit our cups perfectly.

A lot of lids, perfect for parties and outings. Kid-friendly and bug-proof for outdoors!!

Great Quality for a Low Price

Happy with purchase. Love using tbese with go cups.

Lids are great, never leak

Fast and Easy to pop on cup