Description: DURABLE ALUMINUM ALLOY FRAMEUsing aluminum alloy frame, high strength, wear resistance is 2-3 times that of other materials. WALL MOUNTED TYPEThe product can be fixed on the wall, and mounting accessories included, easy to use, beautiful and space-saving. WIDE APPLICATIONSSuitable capacity for storing envelopes, magazines, newspaper and more, practical household accessories. EQUIPPED WITH KEYEquipped with a key, it is more convenient to open and close, while preventing items from being lost and being more secure. MULTI PURPOSE USEThe Type B 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: Type: A, BMaterial: A: aluminum alloy+fiberboard+ABS+PC B: MDF + aluminum alloyColor: silver greyPost box size(approx): A: 21 x 10 x 28cm/8.27 x 3.94 x 11.02inch(L x W x H) B:21 x 12 x 28.5cm/8.27 x 4.72 x 11.22inch(L x W x H)Entrance size(approx): A: 155 x 8mm/6.1 x 0.31inch(L x H) B:150 x 5.5mm/5.91 x 0.22inch(L x H) Package:Type A:1 pc * Post box2 pcs * Key1 bag * Installation screwsType B:1 pc * Suggestion box2 pcs * Key1 bag * Installation screws Note: 1. Due to the light and screen difference, the item& 039s color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.