Seller: liltumbleweed (617) 100%, Location: Eugene, Oregon, Ships to: Worldwide, Item: 323581576543 This Glass Lightning Rod Ball is 5" wide and 5 3/4" tall. The cap opening is 1" at both ends. This White milk glass has a swirl pattern and MAST label. There are no chips or cracks on the ball but there are some defects in the glass. When I look inside the ball around the caps, at one end I can see one little chip around the lip but it's hard to see under the caps. I know very little about these lightning rod balls but about a year ago I bought a bunch of them from an antique dealer that was retiring.