3 pack of rings Handblown borosilicate glass. * Remember that each crystal is handmade, so it is unique and unrepeatable. Your jewel will be similar but not the same as the one in the photo. - Dimensions for each ring: 3x 3x 1 cm = 1.2x 1.2x 0.39 in. - Weight: 3 gr. = 0.1058 oz. - Sizing: From size 4 (XS) to size 11 (XL) (size guide)