Oblong oxidized, textured silver cufflinks, hallmarked in Sheffield.The inspiration for, the texture of these cufflinks, came from geological mapping, the lines represent the layers of rocks. They are quite chunky, but still quite light. They are curved, so won't catch when worn. The Hallmark is on both cufflink backs, which is very sturdy. Measurements: of the oblong 10mm Width 15mm length