Contek New & Improved Ultrasonic Jewelry Cleaner Restore The Luster To Your Earrings, Necklaces, Watches, Eyeglasses, Rings And More In Just Minutes! Uses Water And Gentle Ultrasonic Waves To Dislodge Dirt And Grime. Stainless Steel Cleaning Tank With 16 Oz Capacity. Includes Plastic Basket For Use Cleaning Delicate Items. Includes A Specially Designed Holder For Cleaning Metal Watchbands That Keeps The Timepiece Dry.