Smart, modern design with a tough aluminium frame and a secure lock (supplied with two keys) 4mm security glass front Weatherproof to IEC 60529 standards White magnetic steel interior for use with magnets and drywipe marker pens Unique fixing bracket enables one person installation Each case has 46mm frame depth with 15mm usable space inside and a 10mm gap between each A4 page for improved presentation Fits 9xA4 WxDxH: 792x85x1040mm