I must first say that these cups are beautiful. The blue is a rich cobalt color and has an amazing shine. I was surprised how much prettier these cups were when I recieved them compared to just seeing the photo of them when I placed my order. I have several sets of these cups from Schiipper in different colors and the quality of their products has been quite impressive. These stainless steel tumblers are so much safer to use at the beach or poolside than glass and they keep drinks colder longer. I like that I can use them in the warmer months for cold beverages and the cooler months for hot cocoa. My 6 year old daughter loves to drink her water, smoothies and almond milk from these cups because they stay so cold. The size is great for her little hands and the lid with the straw keeps spills to a minimum. I like the locking lid which makes them great for travel. They would make great gifts for housewarmings, weddings and hostess gifts.