Buy this additional Moonphase Moondrop(13mm) to interchange into your existing Moondrop Jewellery. This is the larger of the two size moondrops and fits our standard size jewellery. Note: If you purchased a Moondrop pendant, you will be receiving the moon phase associated with the date indicated when checking out. If you wish to purchase additional moon phases to insert into your existing carrier, then you are at the right place. Just indicate your additional date above and we will include it with your order.