Half round ROLO (belcher) chain 925 Sterling Silver. The chain is unfinished (it means chain does not have attached clasp). All chains (3ft; 5ft; 10ft) are continues uncut chains. You can purchase clasps in our other listings. Item Weight: 3ft - 8.10g; 5ft - 13.51; 10ft - 27.01 Chain size: 2.4mm Link size: 2.40x2.40mm (0.09 in). Link shape: round. All links are soldered closed. Wire: half round shape. Wire 0.40mm(28 gauge) thick, and 0.75mm wide.