Directories are an easily installed, high-quality line of displays, designed specifically to complement newly installed or existing secure-building entry systems. All models feature both weather and vandal resistant construction. The D-series directories are durably constructed from 18 gauge brushed stainless steel to perfectly match the style and function of Viking's stainless steel phones. Applications Use with Viking's K-1900-3, C-3000 or C-4000 multi-tenant entry systems Apartment buildings Business directories are facilities Schools and institutions Public areas Features Economical Attractive Choice of durable finishes -Brushed stainless steel -Polished brass (special order 2 - 4 weeks) Accepts standard 4" nameplates Easily installed over drywall or masonry surfaces with supplied hardware Low profile (3/8") Vandal and weather resistant Modular system (add additional capacity at any time) Lexan plastic window Specifications for D6 model: Shipping Weight: 1.36 kg (3 lbs.) Hardware: (2) #10 x 1.5" wood screws with tamper resistant Torx T-25 heads, special bit included Dimensions : 121mm x 108mm (3" x 4.25") Size(names): 6, 10, 22, 32, 44, 56 Depending on model