MATTE BLANK 20 oz or 30oz White STRAIGHT Skinny Tumbler includes a straw, rubber bottom and ships in individual white boxes.  These are for SUBLIMATION purposes. (you can use vinyl)  Vacuum seal keeps liquid fresh and drinks cold! Leak Proof Lids!  Some dishwashers use high heat to wash which may possibly causing the ink to reactivate. I recommend to my customers to hand wash!  I press these by placing the image down and then turn tumbler and press the other side as well!  Mock Ups & Transfers coming soon! For Wholesale Pricing shop our Bulk Pricing Packs!