Check the listing for details. Original GOLD DROP Surfactant Stops Surface Tension on Water. Condition: New. Listed at 9.95 USD. <img src="https://ti2.auctiva.com/web/aswCredit.gif" border="0"><br><a href="https://pages.ebay.com/seller-center/listing/listing-advanced-sellers/third-party-listing-tools.html#auctiva" target="_blank"><img src="https://ti2.auctiva.com/images/sc1line0.gif" border="0"></a>ORIGINAL GOLD DROP SURFACTANT 2 FLUID OUNCES PER BOTTLE Eliminates surface tension. Cause gold particles to sink so they can be recovered. Only 1 drop in your pan will cause the gold floating on the surface tension of the water to sink. Works great with all recirculating devices including BLUE BOWL CONCENTRATOR, MILLER TABLES AND HIGH BANKERS. See the Gold Prospecting Supplies Section in our store for more prospecting gear. Available with BUY IT NOW. WE SHIP FAST!!!!!