This o shape chain,we use aluminum material,it is 3.0-3.2mm thick,can make it in silver color,old bronze,old copper color.

Because it is aluminum,the color is anodized processing,so it maybe a little color difference while in different plating time.

Link size:16.5mm.

About the samples: 

If the items you like in stock, we can send you a short piece to test the quality for free, only need you pay the shipping fees. 

Shipping ways:

By DHL,Fedex,TNT,UPS and other Express company etc.

Ocean shipping for large quantity.

Other Models: