i received a tervis tumbler in the mail....it was unsealed from inner cup to out cup. they have a life time warrenty...no biggie...i am in a hurry yesterday to get things done...so i gave the cup and the address and go on... well....i get to the post office planning to simply drop it in a priority mail box and go on. the only box it would fit in was a flat rate box....for $10.35. I ask for a non flat rate box for priority shipping...they didnt have any...but they did have a box with hearts for $4.50 cents that the tumber would fit in. i cant imagine they weigh more than a oz or more....they hold 16 oz....the post office is putting itself out of business...i brought the tumber home....wrapped it in an old cat food box and now lets see how much they want to mail it first class?