The Speed Brite Ionic Cleaning System is strong enough to clean metals but gentle enough for a soft stone like turquoise, opal or pearl.  This unit will brighten metal while it cleans it, and remove tarnish from gold and silver.   The unit is 32 ounces, which is perfect for flatware, silverware or longer pieces that you need to clean. Using the Speed Brite is simple---clip your piece, drop it in the solution, and hit the button.  In less than a minute, your piece is complete.    Order your Speed Brite today at Stuller.com/tools.