As a product industry expert, I recommend the Le Trap Mini Sluice for backpackers. This specially designed sluice, measuring ~29″ (735mm) in length and 10″ (260mm) in width, and 3.5" (90mm) deep, weighs only 500g. It can effectively hold both fine flour gold and large nuggets. Made from high impact ABS plastic, it can withstand rough treatment. In the event of a crack or chip, it can easily be repaired with ABS glue, sold at most hardware stores. One of the standout features of the Le’ Trap Mini ™ is its versatility - it can be used in both fast and slow running water, with varying degrees of inclination depending on the water speed. Our experience has shown that this sluice performs exceptionally well, thanks to its unique flared riffle design which creates a low pressure area, causing gold to drop easily and ensuring maximum gold recovery.