This Is A Fine Gold Recovery Mini Sluice Box With Leg kit Made by Martin Prospecting with a valve to 

smooth the water flow.legs fold up and slide gives you a 2 1/2" fall over all

legs are 7" and 9 1/2" tall

 all you need is a water hoes or a 200 GPH Recirculating  pump and some pay dirt

24" x 4 " 2 lb