Swarovski Art 2714 fan (shell) rhinestones shape. has unique cuts and facets featuring two geometric sides and a rounded edge. It is very versatile and can be put together by itself and with other rhinestone shapes to create great designs. The small fans are popular in the nail art. The fans are a flat back and silver foiled for extra shine and reflection, except for the jet, which is unfoiled. The fan flat back crystals are available in 3 sizes and colors as shown below. Swarovski 2714 fan stones are made of "Advanced Crystal" and are lead free and compliant with international standards.