Practical : metal for use with magnets. Door can be hung on left or right hand side, low weight for every type of support. Delivered with screws. Guaranteed protection of documents inside: water proof without risk of condensation thanks to natural internal ventilation. Anodized aluminium frame. Safety glass with thickness 4 mm. Dimensions: H 40 x W 51,5 cm, for 2 sheets. Thickness: 3,3 cm (useful 2,1 cm).