Speed Brite Ionic Jewelry Cleaners work by electrolysis. Ions are attached to dirt and grease rather than metals and stones. Surface tension is reduced permitting dirt, tarnish and oxidation to be lifted away from jewellery or other metal pieces with gentle bubbles without abrasion. No metal is lost. Stones are safely cleaned without potentially damaging friction, heat or abrasion that other cleaners produce. Rinsing and drying after immersion naturally enhances renewed lustre.  Specifications:  Tank Capacity: 12oz  Power: Switchable 100V to 240V  Outside Dimensions: 6 3/4” Dia X 4 1/2” H  Inside Dimensions: (Tank) 4 1/2” Dia X 2 1/4” D  Unit Includes: Cleaner and lid  9V Power Supply  Stainless Steel Basket Ring Hanger wire  32oz Gem Sparkle Liquid Concentrate