Tumbler Size : 20oz each Tumblers are double wall insulated stainless steel and can hold hot and cold drinks. -Printing directly on to Tumbler -No Vinyl or Expoxy Each of our stainless steel tumblers is custom-hand-made of SUS 304 body and premium material lid. The only drink lid to keep your water, beer or favorite drink locked in the tumbler. Tightly A durable coat of color won't fade, peel or crack through extended field use. The double wall insulated tumbler with a vacuum between helps your drink to keep its temperature from 3 to 4 hours What is a Flatbed UV Printer? Flatbed UV Printer usually use UV curable in made of acrylic monomers that are then exposed to strong UV light to cure or polymerize them. The adjustable printing bed makes it possible to print on surface ranging in thickness from a sheet of paper oftern up to as much as serval inches.