Sklar's Doyen-Jansen Adult Mouth Gag, which may also be known as a Molt mouth gag, is used to retain the mouth opening during oral and ENT procedures. It is a finger ring instrument that features a Tru-Grip cam ratchet locking system. The blades of this instrument are 1 inch long and 1/4 inch wide. It also features cushions on the blades for the comfort of the patient. The overall length is 4-1/2 inches.