AGH 20oz Sublimation Tumblers with Portable Handle, Insulated Vacuum Stainless Steel Coffee Tumbler - 30 Pack Features: 1.Sublimation Tumblers, you can print colorful picture on it 2.Double-walled insulated vacuum skinny tumblers to keep chilled for more than 9 hours 3.High quality 18/8 304 stainless steel, healthy and shatterproof 4.Lightweight and portable, easy to carry when you go for a walk 5.Easy to clean, no condensation Steps to Sublimate Skinny Tumbler: 1. Select the picture you like and print it out. 2. Make a full wrap the sublimation paper on AGH straight tumbler. 3. Put it in oven for 5 minutes, , 338F/170℃. Or use the tumbler heat press for 60-70 sendonds 4. Get your beautiful printed skinny tumbler. Please keep in touch with us if you have any question and we will provide you a perfect solution within 12 hours