Mathematically inspired modern lighting design. The Abacus 10 Sphere LED Pendant by Terzani showcases pure precision as well as vibrant all-around light in its strand of 10 spheres. Its simple design is inspired by that ancient mathematical tool, the abacus. Each sphere is made out of hand-blown White Satin glass, a material that gives the fixture a sense of brightness whether it’s turned on or off. When it’s turned on, the light from the integrated LED glows through and all-around each sphere. While designed to be used in custom configurations, just one pendant will certainly make an impression in any modern space.