Window construction and therefore also the first thing that gives in when a thief tries to make a burglary. Our own tests have shown that the construction and materials in Lindrucker Vindueshaspe can withstand over 11 minutes of burglary attempts. An ordinary hasp gives up after a maximum of 20 seconds of burglary with a screwdriver. Effective protection against breaking windows. Designed to be a discreet and beautiful solution that fits most windows Made of brushed stainless steel. We recommend fitting 2 Lindrucker window hasps per window. There are 2 hasps and a template in the box. Note that variations in the brushed surface may occur as the hasp is handmade.