![Compact Designs Knocktube](http://vanelis.com/cdn/shop/products/knocktubes7_e1c7b674-f588-4358-a4c4-8514cc6505d1_{width}x.jpg?v=1545937702)
Standing at 7 inches tall, this knock bin is ideal for use at home or in a small cafe. Using a knock bin to cleanly knock out used coffee grind is vital to ensure the long life of your group handle, as scraping grind with a spoon or knife may scratch or dent it.