THESE SOS BRACELETS ARE FULLY WATERPROOF AND MADE FOR DAILY WEAR. REVERSIBLE STAINLESS STEEL SOS / CADUCEUS BRACELET - SILVER. All of our jewellery is sourced in the UK from reputable suppliers. THE SUBSTANTIAL CHAIN BRACELET HAS A LOBSTER CLAW FASTENER WHICH CAN BE CLOSED TO FIT ANY WRIST (WITH A MAXIMUM OF 24.5cm OR 9.5").