Stainless Steel Eyelet Metal Grommet-Lathe parts
$1.10
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Material : 316L stainless steel. extreme polished.
Gold: IP-24k gold plated. stainless steel.
Silver: stainless steel original polished
Don't need special tool , only put together and hit them.
Inner size 3mm use 2-3mm leather thickness
Inner size 4.5mm use 2.8-3.5mm leather thickness