With SecuForte, HOPPE offers a completely new standard in burglary resistance: In both the closed and tilted positions, the handle and square spindle are decoupled, and the handle is automatically locked - a unique protection concept that effectively prevents unauthorized opening of the window from the outside. Advantage: Protection against break-ins through glass drilling, frame drilling, or shifting the fittings from the outside, automatic locking function in the closed position (0°), burglary-resistant effect even in the tilted position (180°), RAL certification, with length-variable square spindle VarioFit®.