U1 stool from Andersen, designed by Christian Juhl. U1 is a functional and decorative stool that expresses a fun unique feel. The U1 stool have an interesting combination of wood and metal and is joined together with a patented locking mechanism, making it easy to remove the legs. The patented locking brackets are exactly like the one used on bottles and jars around the world. U1 is in solid ash and stainless steel.