Description: DURABLE ALUMINUM ALLOY FRAME: Using aluminum alloy frame, high strength, wear resistance is 2-3 times that of other materials. WALL MOUNTED TYPE: The product can be fixed on the wall, and mounting accessories included, easy to use, beautiful and space-saving. WIDE APPLICATIONS: Suitable capacity for storing envelopes, magazines, newspaper and more, practical household accessories. EQUIPPED WITH KEY: Equipped with a key, it is more convenient to open and close, while preventing items from being lost and being more secure. MULTI PURPOSE USE: The box is blank, so you can DIY on it, not only as a suggestion box, but also as a post box, complaint box, etc. Specification: Material: aluminum alloy+fiberboard+ABS+PC Color: silver grey Post box size(approx): 21 x 10 x 28cm/8.27 x 3.94 x 11.02inch(L x W x H) Entrance size(approx): 155 x 8mm/6.1 x 0.31inch(L x H) Package includes: 1 pc * Post box 2 pcs * Key 1 bag * Installation screws Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.