Additionally, our doors have AVOCET Affinity handles to match our Windows and are fitted with the HAHN KT-S range of four way adjustable door hinges which combine a high level of attack resistance and load bearing capabilities. The Wink Haus Cobra 4 Hook door locking system offers an extremely strong multi-pointed lock that resists attack and burglary. View our technical data sheet for full specification and differences between the ranges.