Please be advised that when your new bird bath is wet you may detect a visible ‘crazing effect’.  Crazing is a perfectly harmless, natural phenomenon that appears on the surface of newly cast stone products when wet.  Crazing is temporary, and when your bird bath has dried out after several weeks it will disappear, leaving no visible trace. Crazing is an aesthetic occurrence that is not detrimental to the structural integrity of your bird bath.  Our extremely robust bird baths are made from our revolutionary Teclite material, which contains glass fibres that provide additional strength. For your peace of mind, all of our cast stone designs are frost proof and are sold with a five year guarantee.