The larger link in this chain will accommodate an 20 gauge jump ring.  The smaller links are too small to accommodate a jump ring for finishing and may require soldering or end caps instead.  The jump ring inner diameter shown in Detailed Specs section is for the smaller links.

Chain Style	Long & Short
Chain Length	Footage
Chain Clasp	No Clasp
Chain Width MM	1.1mm - 1.5mm
Chain Wire Links	Round Wire
Link Thickness Gauge	27 Gauge
Link Thickness MM	0.36mm
Link Width MM	1.5mm
Link Length MM	3.8mm
Link ID Gauge	26ga small link
Link ID MM	0.4mm small link