The rolling pin is clear glass with no openings. No screw off caps, or corks and is hollow inside. The pin has no chips/cracks. It has molding marks on one side, top of ball. A pinched star like molding in glass and rough molding clumpy texture on sides; made that way. The pin is dirty inside with liquid residue or calcium deposits over time. You cannot get inside to clean it and I do not know how it happened. Sold as is, as found. Some light surface wear due to age/use. Check all pics carefully. Measures 15" X 2.75" X 3".