Bonds are a reliable and safe investment alternative aimed at small savers and the general population.It allows you to save your money for a certain period, obtaining at maturity the return of the principal plus the interest generated at a pre-established rate.They are dematerialized. For this reason, when you purchase your bonds, you will only receive a certificate. If you lose the certificate, you do not lose the rights to your investment.What are the requirements for the purchase?Valid identity card or passport, plus a photocopy.Being over 18 years.