American Silver Eagle-Round Coin Tubes by H.E. Harris & Co. American Silver Eagle round coin tubes by HE Harris & Co. are made of high quality crystal clear polystyrene materials. Fits coins up to 41 mm. Built with a twist-off, non-slip cap. The HE Harris & Co. round coin tubes are ideal for storing and protecting your coins. Each tube holds 20 American Silver Eagle coins. 10 pack