Hello and welcome to MYD Designs Co. Here you will find beautiful designs to adorn your metal tumblers. Choose a design and add that extra pizazz with sprinkled glitter, sparkly vinyl or rhinestones. The possibilities are endless. Come and check out what I will create next. My files are in PNG format and are sized for 20 oz skinny straight tumblers. The file is set at 9.3W x 8.2 H, but can definitely be sized to fit a 30 oz skinny as well.