Skinny tumbler for sublimation. White changing to UV activated color AND green glow in the dark. Two different color changing effects in one tumbler! These are the straight version, no taper. 20 oz straight skinny metal tumbler. Includes lid and metal straw. (rubber bottom sold separately if desired) Shimmery white sublimation coating that produces vibrant colors. For use in a mug press or convection oven. Convection oven requires the use of shrink wrap to apply pressure during baking, sold separately, and accessories such as rubber bottoms and straw cleaning brushes are also available in a separate listing. ***Convection Oven Directions*** PLEASE NOTE: equipment varies and so may your required settings.