A manual suction dredge . Gets behind and under rocks anywhere in a stream up to 3ft. Usually gets more than a pan full. Great for feeding a sluice box set up next to you. 3' bore with a 2" nozzle. Also there are two crevice tools for $10.00 ea. One is 3/4" round and also a nozzle with a 3/8" flat opening. The ladies love it. No more shovel. Save your back and no more blisters from that shovel handle. More efficient and faster than your shovel. Give me a call at 892-8233 Thanks Jerry Location: Big Lake it's NOT ok to contact this poster with services or other commercial interests alaska