10pcs Zinc Alloy Spring Ring Metal Open Bag Webbing Keychain, Size:Half-inch Black

1. Material: zinc alloy2. Suitable for: bag chain making, key chain making DIY3. Wear-resistant and corrosion-resistant, high hardness4. Not easy to break, long service life5. Suitable for making various key rings6. Outer diameter: inch and a half 47.6 mm; 2 inch 60 mm7. Inner diameter: inch and a half 38 mm; 2 inch 50 mm8. Thickness of wire: inch and a half 5 mm; 2 inch 5 mm9. Weight: 15.8 grams for an inch and a half; 21 grams for a 2 inch