2JewelleryWomen's Sterling Silver Bracelets, Bracelet with round strap, S925 silver, 7 sections weighs about 35g, 8 saves 42g, 9 sections 49g, the extension buckle is about 6g, the thickness of the bracelet is about 2.5mm, the extension buckle needs to be purchased separately, and the extension buckle can be extended by about 20mm.