Magnasonic Professional Ultrasonic Jewelry Cleaner with Digital Timer for Eyeglasses, Rings, Coins (MGUC500) Cleans dirty jewelry, eyeglasses, watches, utensils and more in minutes using only tap water (does not remove tarnish) Condition: gently loved, like new Ultrasonic sound waves for a deep and gentle clean This powerful cleaner packs a gentle punch. 42,000 Hz of ultrasonic energy waves create millions of microscopic cleansing bubbles that gently lift dirt away without using harsh chemicals or scrubbing. The motion of the water may look mild, but it’s actually producing a deep and thorough clean to penetrate the most difficult areas. Generous 20 oz (600mL) capacity The stainless steel chamber holds 20 oz (600 mL), with interior dimensions of 5.4" L x 3.6" W x 2.1" H, allowing you to fit a wide assortment of items into the chamber for professional cleaning. Cleaning Cycles: 5 Presets - 90/180/280/380/480 Seconds Tank Material: Stainless Steel Power Input: AC 100-120V, 60Hz, 35w Ultrasonic Frequency: 42,000 Hz Display: Digital Frequency: 433.92 Mhz Cleaning Technology: Ultrasonic Waves Automatic Shut Off: Yes Dimensions (External): 8.2 (L) X 5.8 (W) X 5.4 (H) Inches Weight: 2.2 lbs. Certifications: FCC, ICES, UL What's Included: Ultrasonic Jewelry Cleaner Machine (MGUC500), Cleaning Basket Customers like the quality and size - they mention that it does an amazing job of cleaning jewelry, and is easy to use and store.