Round coin tubes by HE Harris & Co. are made of high quality crystal clear polystyrene materials. Built with a twist-off cap, the HE Harris & Co. round coin tubes safely protect and store half dollar coins. Polystyrene round coin tubes by HE Harris & Co. come in retail boxes of 100. HE Harris & Co#: 8ANC1282. Size: Half-Dollar. Sold in Packs of 100.