The DK3 & DK3D are fully adjustable, accommodating all cylindrical mugs available on the market. This includes 11 oz, 15 oz, 16 oz mugs, steins and stainless steel travel mugs. (...but not tapered latte mugs...) The ability of the press to open extra wide allows for easy and fast loading and unloading of mugs from the press. The thick solid steel framework and die-cast clamp assembly provides a heavy duty framework for non-stop use. The clamp assembly can be adjusted for very heavy pressure, allowing for full bleed transfers on even the most demanding mugs. Finally - a mug press that compensates for less than perfectly straight mugs!