Harris Round Polypropylene Coin Tube for 40 QUARTERS This tube holds up to 40 quarters. It will also hold any coin, token, or poker chip up to 24.3mm, though the maximum quantity will vary depending on the thickness of the items. Harris polypropylene coin tubes are the least expensive tubes on the market. Each tube has a screw-on cap that will not pop off. They are ideal for storing and protecting large quantities of coins when display is not a consideration. Each order is for a single tube.