This window-size cremone bolt is manufactured from solid cast iron and features a black powder-coated finish for surface protection. Designed for use on double windows, the cremone bolt mechanism allows for the simultaneous activation of locks at both the top and bottom of the window frame using a single handle. The system is compatible with window units up to 6 feet in height, and the included bolt rods may be cut to shorter lengths to accommodate specific window dimensions. The cast iron construction is intended for surface-mounted installation and provides a manual locking solution for residential or professional window applications.