Crystal Prism World 5Pck Teardrop Crystal 63mm TW628 Pack of 5, Classic Clear Teardrop Crystal 63mm Trademark Logo, "Crystal Prism World" will be labels with each set. Main Prism is 63MM = 2.5" & Top Octagon Piece is 14MM = .5" Clear AAA TOP Excellent Quality Clear Optical Crystal Glass Excellent Color Refraction - Brass Open Eye connectors