Review on Elk and Friends Kids & Toddler Cups: Original Glass Mason Jars with Silicone Sleeves & Straws - 8 oz Smoothie Cups for Spill-Proof Sippy Cups by Donotello Figueroa

My 2 year old son has been using these every day for several months. He threw them off and they remained intact. Cons: Sometimes it pushes the silicone straw all the way into the lid so I have to unscrew it to put the straw back in. Another downside that I discovered just yesterday is that the glasses are made in China. I know the company says they have strict standards, but considering I found lead in toys made in China, I don't have a lot of faith in that country's standards. I replaced them with bell jars (made in the USA).