Strong aluminium frame with secure lock (supplied with two keys). 4mm security glass front. Smart, modern design can be positioned with the door opening on either the left or right hand side. Blue felt interior for use with pins and Hook-and-Loop. Unique fixing bracket allows one person installation. Each case has 37mm frame depth with 15mm usable space inside and a 10mm gap between each A4 page for improved presentation. Fits 9xA4.