'Undercover' Chain Bracelet Silver Berberine Vs Goldenseal: Which Should You Choose? Vinatura Supplements. The 'Undercover' Chain Bracelet from BY1OAK adds instant style to any look. The combination of a chunky silver chain and a detailed lock creates a stunning statement piece, perfect for wearing on its own or stacking with other bracelets. Presented in a black gift box. DETAILS Material: 925 sterling silver Size (length): 18. 5 cm Trace Figaro Chain: 5 mm Care: To keep your jewelry in its best condition we recommend taking it off when showering and swimming. Try to be careful with perfume and lotions. Designed in the Netherlands and hand crafted in Bali, since every piece is made by hand small variations may occur. ABOUT BY1OAK is a jewelry brand from the Netherlands. Their handmade pieces are characterized by its refined, feminine and delicate design. The aesthetic of the brand is subtle and romantic. Their collection uses 925 sterling silver or 14K double plated gold, for an extra thick and durable layer of gold. BY1OAK use only 100% natural stones and gems such as coral, onyx, sapphire and lapis.