... 666#, 777#, 888#, 999#, 999.5# & 30mm Prong snap buttons.6). Pearl sizes: 7.8, 9, 10, 10.5, 11, ... 13, 14, 15, 18, 19, 21, and 25mm7). Square pearl cap size: 10 mm x 10 mm, 11.5mm x ... RUSTY45COPPER RUSTY46ANTIC COPPER RUSTY47GREEN COPPER ALLOY48FLOWER ALLOY18). All Prong snap button types TypeA part sizeBCD parts sizeA part B part ... .4mm25.4mm/25mm/30mm29~30mm30mm30mm/29mm/ GH Button --- Pearl Snap Button