Material: iron, zinc copper
Size: 00#, 0#, 1#, 2#, 3#, 4# etc
Style: card packing, bulk packing
Process: plating
Color: nickel, black
MOQ: 300 great gross
Pack: card packing (36 sets/card:24 sets/card); bulk packing(500 sets/bag)

00# 7mm	00# 7mm	0# 8.5mm	0# 8.5mm
1# 10mm	1# 10mm	2# 12mm	2# 12mm
3# 14mm	3# 14mm	4# 16mm	4# 16mm