Sanka Sanbassa Slim Floating File Box with Powerful Magnetic Storage, Fits A4 Size Files, White, 4kg Weight Capacity, Securely Mounts to Desks,

Product dimensions: 7.7cm wide x 33cm deep x 25.4cm high (fits A4 files) Weight capacity: 4kg. The strong magnet means you don't have to worry about it falling off. Can also be attached to steel desks and whiteboards. Can be installed vertically or horizontally. Made in Japan