410 BOX, SWITCH 3X2X1-1/2 | Four cable knockouts on the end. 3 in x 2 in x 1-1/2 in D. 7.5 cu-in. With clamps for non-metallic sheathed cable. Plaster ears allow the box to be used in old work applications. Acceptable for use in 2 hrs fire rated walls. UL listed.