The CashSmart™ manual coin sorter consists of 7 trays that have different size holes. The biggest holes at in the top tray and getting smaller as they go down. It works like a sieve. You pour the mixed coins into the top tray and shake the trays for about one minute and the coins will be separated into R5 in the top tray down to 10c in the bottom tray. This trays work extremely well with our coin and note counters and our bulk coin scale. They are made out of a nylon composite and are quite robust.