The attractive Tamburo wall sconce has minimal hardware to show off the beautiful open-ended handcrafted glass. ADA-Compliant. Our Natural carved Onyx. The warm banding, crackling and veining of this quartz material lends it a sophisticated look. Each piece in this décor has its own artistic nature that can be individually appreciated.   When lit this gives off a light that is functional and soothing. These stylish and functional luminaries are offered in a beautiful Black finish.