This tumbler has been made to hold a tealight candle (included) The 'green' area is stencilled onto the glass using glass paint and then the crystal decals are glued on.
The tumbler measures approx. 7.5cm/3" high and 7cm/2.8" wide.
As some of the decals are glued on I should recommend only washing if absolutely necessary.  If you do decide to wash it I would suggest it is done very gently with just lukewarm water.
Please excuse the terrible photographs, I am hoping to get a polarizing filter for my camera, to enable me to take better photographs of glass, as I find lighting and showing the etched detail, very hard at the moment, hence the black insert to highlight the pattern better.