SET THEN AUTO-DONE: No more manual or repetitive pressing – the HTVRONT tumbler heat press machine has you covered. With a simple click, our tumbler press automatically applies the ideal pressure based on your tumblers diameter, making professional-grade sublimation tumbler heat press projects a breeze in a single operation AUTO-OFF & QUICK EMERGENCY STOP: Our automatic mug press machine is designed with your safety in mind. It smartly powers down after 15 minutes of inactivity, and the mug press boasts an emergency stop feature for added protection. Just press the R button, and your tumbler heat press machine HALTS HEATING AND RELEASES THE HEAT PAD INSTANTLY, ensuring youre free from any worries about burns – HTVRONT is your safety partner FITS MORE MUGS, HOLDS MORE MAGIC: Thanks to its extended and larger heat plate, this mug heat press fits a wide array of mugs, tumblers, glassware, cups, water bottles, and sippy cups. It accommodates tumblers 2.9 inches(7.5cm) to 3.35 inches (8.5 cm) in diameter and ranging from 280ml - 850ml FASTER & SUPERIOR SUBLIMATION: Opt for our mug press sublimation machine and save about 3 minutes on heat and transfer time compared to standard tumbler presses. Additionally, our heat press machine & soleplate use durable, high-temperature resistant materials without deformation or melting, reaching a maximum temperature of 390°F/200°C. Bid farewell to design mishaps with our automatic tumbler heat press YOUR SATISFACTION GUARANTEED: We are committed to providing the best customer service on Amazon. Should any issues arise with this heat press for tumblers, contact us immediately. We will tailor a solution to ensure your satisfaction