This rectangular set of back door hardware is equipped with extra protection against burglary and is SKG*** approved. This set has a profile cylinder hole size of 72 mm and has a matching doorlever on both sides. The security hardware is made of stainless steel and afterwards brushed, giving it a matte look. By using stainless steel this product has a long life. The security fitting is equipped with core pull protection, which protects the cylinder against pulling out and drilling the cylinder core. Key pull protection has been mandatory in new construction since the end of 2013 and for existing construction since April 2014.