This is a necklace, length of 37 cm. Actually, to my taste it is a bit short, so I'll probably end up lengthening it a few centimeters. The rings are made of 1mm thick silver wire with an inner diameter of 3mm.
The weave is called Jens pind and although it looks really nice, it is equally boring to make. In Finnish this is called piina and a loose translation to English would be pain in the ... Some say that it is difficult to make and altough not the easiest chain, it's not that hard. If you are interested, give it a go :-)