There are different sizes of grommets made of iron, copper and stainless steel material which come with brass or nickel treatment.
Iron Grommets (color in gold or silver color)
TP-GI-6 10.5x6x5mm,TP-GI-10 17.5x10x5.5mm, TP-GI-12 21x12x6mm, TP-GI-13.5
23.8x13.5x7mm.
1000pairs/bag

Copper grommets (color in gold or silver color)
TP-GB-10 17.5x10x5.5mm, TP-GB-12 21x12x6mm, TP-GB-13.5 23.8x13.5x7mm.
1000pairs/bag

Stainless steel grommets in silver color
TP-GS-10 17.5x10x5.5mm, TP-GS-12 21x12x6mm, TP-GS-13.5 23.8x13.5x7mm.
500pairs/bag

Special size grommets made of iron or copper material come with gold or silver color
treatment.
US#1 8x16x6mm
US#2 9X19X6mm
US#3 11x24.7x7.5mm
500pair each box.