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 tube is 66mm. A 66mm depth will accommodate all silver rounds in the market.Guardhouse also makes a silver round (medallion) tube with an insert in the lid that reduces the overall depth to 60mm (item 781673). The 60mm deep coin tube is designed to reduce the rattling when accomodating 20 silver rounds under 3mm in depth. 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). Patent: D782772 Guardhouse Coin Tubes#: 091037816757. Size: Silver Round. Sold in Packs of 100.