... test report, nickel free test report.5). We have the series of 111#, 111.5#, 222#, 333#, 444#, 555#, ... 888#, 999#, 999.5# & 30mm Prong snap buttons.6). Pearl sizes: 7.8, 9, 10, 10.5, 11, 11. ... 14, 15, 18, 19, 21, and 25mm7). Square pearl cap size: 10 mm x 10 mm, 11.5mm x ... can be customized15). Color painting can be customized16). Prined pearl can be customized17). Available plating Color No#Color names ...