Product details:

Another CRL innovation is our brass constructed Frameless Mail Slot for commercial 'all-glass' entrance doors. This easy-to-install unit features a 1/2" (12 mm) glass flap with a pair of spring hinges that will fit 1/2" (12 mm) thick glass. It's a beautiful alternative to the traditional aluminum mail slot. Available in four architectural finishes to complement our Door Rail and Patch Hardware. Custom finishes are also available. SPECIFICATIONS: Material: Solid Brass Glazing: 1/2" (12 mm) Glass Glass Fabrication: Cut-Out Required Instructions and Templates Included