These angle packers from Winkhaus are designed to suit the Winkhaus OBV Window Restrictors. When using the restrictors on windows where the mounting face of the up stand is not square an angled packer will be required to help achieve a secure fit. Features To suit the Winkhaus OBV Window Restrictors Allows secure fitting to UPVC windows On windows where the mounting face of the up stand is not square an angled packer will be required
