Bought these over the holidays for entertaining -  love inviting friends for those after-dinner coffee/alcohol drinks and these are perfect for that! Careful not to always place in dishwasher, as they can be fragile and crack. Use for tea daily, when not entertaining. You will never go back to regular mugs after having some that keep hot drinks hot, cold drinks cold, for much longer! Sent 1 friend home with 2 of them because she loved them so much!