If the base of your high gloss glazed ceramic birdbath has broken, we can easily replace just the top without you having to purchase a new set. Your original lock on top fits easily onto this replacement base and will keep your birdbath up and going for additional seasons of bird watching pleasure. Birdbath base is 21-3/4 inches high diameter. This item cannot be shipped Hawaii or Alaska. This item ships in 5-7 days.