This necklace setting is especially made to fit the Swarovski 1088 Xirius round crystal in 6mm (SS29). Using 40 round stones of your choice, simply place each stone into the setting and tighten the claws. The necklace length is 41cm with a 4cm extension chain. This necklace is very glamorous and fits comfortably around the neck. These high quality settings are handmade in Europe. Nickel Free. Stones sold separately.