yueton?Crystal Prism 20Pcs 38mm Clear Crystal Chandelier Icicle U-drop Prisms Lamp Pendants Brass Connectors Main Prism is 38MM = 1.5" & Top Octagon Piece is 14MM = .5" Clear Top excellent Quality Clear Optical Crystal Glass These crystals catch the light well and sparkle with great intensity Great for Weddings, Baby Rooms, Christmas Tree Decorations, Chandeliers, Art Projects, Jewelry Making, Necklaces