4 oz. jar. Deco Foil has reformulated its transfer gel to work with or without heat! Deco Foil Transfer Gel DUO™ works two ways; you can transfer using heat from a laminator OR with pressure from a die-cutting machine. Transfer Gel DUO is an acid-free, permanent transfer medium that dries clear and remains tacky for easy use; use with Deco Foil Transfer Foils.