The standard sluice box for lightweight gold prospecting. The A51 is compact and yet large enough to get some real work done, and is our most popular medium size sluice for all around use. Aluminum box with “quick latch” removeable steel riffles. The riffles hold down expanded steel diamond mesh over green riffled carpet. There is a short piece of black ribbed rubber just ahead of the riffles to act as a quick visual check for gold in that last bucket or shovel full of gravel. This sluice box is well balanced with a handle for carrying. Size 10″ wide x 36″ long. The sides are 4.5″ high. Weight 9 lbs.