Lamson B120AR-UPC Carlon Single Gang Nail-On Box

Product Description 25 Pack, Single Gang, New Work Switch & Outlet Box, 3-7/8" x 2-1/4" x 3-1/4" Deep Blue PVC Box With Captive Nails, Leveling Guides, 4 Knockouts 2 Each End, 20 CUIN. From the Manufacturer The Carlon Single Gang Box with Captive Nails comes with four knockouts, two at each end. The depth is 3-1/4 inches; width is 2-1/4 inches; length is 3-7/8 inches. It mounts on the side of the stud and is 20 cubic inches in volume. It is non-metallic and non-conductive.