http://www.silvertime.co.uk/jewellery/mens-square-curb-franco-sterling-silver-chain
This unusual design of silver chain is a square box design. A great alternative to the basic curb chain.
These chains are of superior quality and fitted with quality square end caps and shackle clasp
3.70mm width
Weights:
18 inch (46cm) length - 31g / £59.90
20 inch (51cm) length - 34g / £64.90
22 inch (56cm) length - 37g / £69.90
24 inch (61cm) length - 41g / £74.90
26 inch (66cm) length - 44g / £79.90
28 inch (71cm) length - 48g / £84.90
30 inch (76cm) length - 51g / £89.90
Packaged in velvet pouch and deluxe hinged chain case