These black lantern string lights are designed to look like old fashioned industrial-style lanterns. Made of metal and painted black, the lanterns measure 4" by 3" individually and cover the glass bulbs. 10-foot plastic cord features end-to-end connectivity and is suitable for both indoor and outdoor use. These would look lovely out on the patio or inside on the mantle. To use, simply plug into the wall. For decorative use only.