Marla Aaron's Medium Lock in 14K Yellow Gold and Navy Enamel is the perfect pop of neutral color. Add it to a Marla chain (or two) or link it with your favorite Marla Lock for a unique look. The Enamel Medium Lock is 2.5cm x 1cm with a thickness of 2.3mm. Closure is 4.7mm. Complete the look with a Marla Aaron Chain - Click To View Chain Options.