Mary & Percy Shelley cufflinks, bronze tone Portraits of Mary & Percy Shelley, bronze tone cufflinks £18.00 £18.00 Add To Basket Mary & Percy Shelley, bronze tone cufflinks. The glass cabochon is 18mm across and the cufflink base, 20mm. The metal is a copper-based metal alloy and is lead and nickel safe. All cufflinks come in a sturdy black textured-card gift box. Please note that glass cabochon images are water-resistant but not waterproof; please keep away from prolonged contact with water.