Guardhouse brand coin tubes feature a unique, patent pending, proprietary design and are the perfect solution for storing your silver rounds and medallions. Sleek and ergonomic, the Guardhouse translucent snap-tight lids and tubes allow for easy identification of their contents and stack for tidy storage. The depth of this tue is 60m . A 60mm depth is specifically designed to accommodate silver rounds with a depth under 3mm. If you have questions about which tube is better suited for your customers or coins, we highly recommend you purchase the Medallion 66mm (Item 781675). Patent: D782772 Bulk Guardhouse brand coin tube boxes are clearly labeled to identify contents and come in interior boxes of 100 and master cases of 600 (6 boxes of 100). Guardhouse Coin Tubes#: 091037816733. Size: 39mm. Sold in Packs of 100.