The tumbler is made with speckled stoneware clay. Wish i could call it glass. Its coated in glaze, which is glass. The exterior is coated with an opaque blue glaze next to an opaque green glaze. The exterior decoration was covered with my base transparent gloss glaze. The interior was brushed with a tan colored rutile glaze

The tumbler is 4 inches tall and 3-1/2 inches in diameter. It weighs 12 oz without packing and holds 14 liquid ozs.