From the brand MMF Industries, these change sorting trays offer you a convenient and cost-effective way to sort and count different types of coins. Each tray is color-coded to conform to Federal Reserve/ABA standards for coin denominations: pennies (red), nickels (blue), dimes (green), and quarters (orange). You can use them by simply pouring the coins into the top tray and then shaking them. The coins will sift through the holes to separate pennies, nickels, dimes, and quarters. These coin counter trays will save you hours of sorting time. Their high-impact plastic material makes them durable for everyday use. These coin sorting trays from MMF Industries are durable, light, compact, and can easily be carried around from one place to another.