This necklace has 3 curved sections of black enamel set in a silver tone metal that can be worn on either side. Turn it over and the it is half black enamel and half Mother of Pearl. The curved and jointed silver tone sides of the necklace fall very nicely around the neck. It closes with a J hook at the back which works well and all the joints move freely. The black enamel on both sides is in good condition and the mother of pearl also is in fine vintage condition. It is 18" long but it does not lay out flat and each of the 3 curved sections in front is 1 3/4" long by 3/4" wide. The black enamel and mop lays flush in the silver tone metal. The necklace is lightweight and very versatile!