The glass used in this pair of cufflinks is representative of the Pacific Ocean and what lies beneath. The shiny top layer resemble that of reflective fish skin, cool! The deep aqua represent the deep waters. The artist that made these is a diver and after her first dive was inspired and this was one of her creations that followed. Handmade and signed by Kathy Seff. Measure appx 5/8" square. Arrive packed in navy sueded gift box with Seff Designs insignia. Yuo won't be disappointed!