Button series: PDR SERIES;PN SERIES; PHD SERIES; PSP SERIES. Dimension available:20#/22#/24#/28#/30#/32#36#/40#/44#/50# Diamond button series: SATTELLITE SERIES, BAUHINIA FLOWER SERIES. Dimension available:12mm/14mm/16mm/18mm/20mm/25mm/30mm/35mm/40mm/45mm/50mm