Tennis necklaces are available in four styles, single rhinestone necklaces, double rhinestone necklaces and triple rhinestone necklaces, which can be worn alone or layered with other jewellery. The silver rhinestone necklace is made from 3A grade cubic zirconia and has a 32cm (12.6 inch) elasticated collar with a 10cm (3.9 inch) extender chain which will fit most necks. Made of alloy silver plated, sturdy and unbreakable, colour preservation process, long-lasting colour, lead-free and nickel-free, non-allergenic, cubic zirconia bright and sparkling, smooth surface Suitable for occasions, birthday, wedding, mother's day, valentine's day, celebration, anniversary, dating and other occasions of fine jewellery gifts Service: if you have any questions about our tennis ball necklace, please feel free to contact us!