80mm Laser Rotary Chuck Jaws, opens to 5-1/4" (134mm) in diameter
This is a custom set of jaws that fit most 80mm laser rotaries and can handle cups, mugs, tumblers, and other cylindrical objects between about 4-5/16" (110mm) to 5-1/4" (134mm) in diameter.
Color may be different than what is pictured.