"Double Rope" is the name of the chain style. It doesn't indicate how many of the chains there will be... you have to pick that! Diameter of chain is approx 2.5mm Just slip it over a barbell or labret post and you're good to go! Measurements are for chain only. The overall length does not include the jump rings. Jump Rings are made from Titanium FOR DOUBLE CHAINS:1-35mm chain will have 4mm added for the double chain. Example: 25mm long chain will have a 29mm chain attached. 36+mm chain will have 5mm added for the double chain. Example: 40mm long chain will have a 45mm chain attached. Jump Rings: 18/16g - 2mm 14g - 2.4mm 12g - 3.2mm
