Stylish Silver Rudraksh Bracelets) are made of PURE BRASS, which are lead free, nickel free that makes it allergy free jewellery. These are very comfortable and fit easily by twisting either side. Please, don't wear it while opening wide, it may loose shape. Although it has a similar appearance to metal, brass is much thicker and will not tarnish. Pure brass material is popular among those who may have metal allergies. Containing a more matte finish compared to silver and gold metals with stronger luster, pure brass is a popular jewelry choice among men's jewellery.