Used for convenience outlets, switch boxes or small junction boxes. Drawn construction and raised grounding provision. Acceptable for use in 2 hrs rated walls. Six 1/2 in knockouts (sides). Two 1/2 in knockouts (ends). Two 1/2 in knockouts (bottom). 4 in x 2 in x 1-7/8 in. 13 cu-in capacity. UL listed.