Skinny white iridescent SHIMMER tumbler for sublimation. These are the straight version, no taper. 20 oz straight skinny metal tumbler. Includes lid and metal straw. (rubber bottom sold separately if desired). White iridescent shimmer 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. Please test your own equipment using these baseline recommendations.