Sizes 50, 52, 54 and 56 are available for pre-order. Shipping expected from July 7th. Composition: 18-carat gold plated, 3 microns Available in sizes 50 to 62 If you have any doubts about the size, refer to our guide!Water resistant, does not blacken, does not leave color deposits Hypoallergenic: Nickel and cadmium free 1 year warranty