CHAMELEON Side Hung Restricted Friction Hinge With Packers - 13mm - 17mmThe CHAMELEON Side Hung Restricted Friction Hinge has a built in restrictor and an adjustable stack height of 13mm 17mm. The window restrictor incorporates a child resistant mechanism which limits the initial opening of the window in question. The built in quick release lever allows the window to be fully opened to be easily cleaned. This pair of hinges comes complete with 4mm packers (set of 4). Built in quick release lever allows the window to be