Joker Sublimation Tumbler, 20 oz skinny stainless steel. The tumblers in the photos were made by me using sublimation. The tumblers are made of 304 stainless steel, which is more durable than plastic. The double-wall vacuum insulated thermal design keeps your drinks warm or cold for longer. and come with a clear push-on lid, straw, cleaing brush for the straw and rubber coaster. They keep your drinks amazingly cold and there is no condensation from ice melting.these tumblers keep drinks cold and hot longer. They are also non-toxic and BPA-free. The designs are printed directly on the tumbler, you don't have to worry about peeling decals, cracking epoxy or loss of design. I strive to make high quality tumblers, please keep in mind that they are handmade individually. Each tumbler is unique, even if it’s the same design, they will never be exactly the same.