This is a used item, used a few times at home. I have disposed of the box, but it comes with an instruction manual that describes how to use it. Size: Height: 5.3cm Depth: 6.5cm Width: 10.5cm Material: 18-8 Stainless Steel Made in Japan Dishwasher safe Compatible cups: Outer diameter 7-8.5cm This is a convenient stand that can raise the position of the drip bag. It prevents the drip bag from being submerged in the poured coffee, resulting in a clear taste with less unwanted flavors. It will be packed with air cushions, etc., and shipped anonymously via Mercari delivery or Yu-Packet Plus. The ruler is not included with the product. Please take a look at the images and make your purchase after you are satisfied. I am currently organizing my collection and have various items for sale. Thank you very much. Thank you for viewing.