This lot of 10 Steel City octagonal electrical boxes with mounting brackets is perfect for any room in your home or business. With six knockouts and a voltage range of 101-150 V, this small junction box is suitable for ceiling installations and ideal for your electrical wiring needs. The silver color complements any decor and the box shape is octagonal, making it a versatile choice for your project. Measuring 4 inches in length and width and 1-1/2 inches in height, this box is the perfect size for your electrical needs.