Width 3 5/8" measured outside edge of inner ring. In other words the hole at this lid will sit in needs to be able to accommodate 3 5/8" width. Total width around the visible part of the lid is 4.5". Height of lid measured from the portion that is visible above the teapot is 3".
Brand NEW lid was made for a teapot, customer changed mind.
LID WAS Specially ordered and made for a Zaklady teapot, 50 oz or approx 1.5 L capacity. Teapot not included.