The Half-Round Ticket Window has a swing-away cover plate that is equipped with a tamper-resistant snap lock and retaining pin for security. The cover plate is also removable when desired. Constructed of extruded aluminum in satin anodized. Made to fit in 6 millimeter thick glass, though spacer kits for thicker glass can be ordered to suit your requirements. A simple-to-do semi-circular cutout is required for installation, which is easily and swiftly completed using the fasteners enclosed.