Metal Condition Finish Avg. Weight        Width Length Clasp Retail Price Real Solid 14K Yellow Gold (Stamped 14K or 585) Brand New Polished 0.50grams for a 3", depending on the size you select 2.40mm Selectable from the drop-down menu above, from 1" to 10" Spring Ring Clasp $99 to $249 We have variety of different extenders including rolo, cable, rope, wheat, byzantine, etc. links! You can check our store for more extender listings! There are O links at every inch, which will let you utilize the entire extender at different lengths.