600ml capacity Ultrasonic Tank. Cleans quickly and easily with powerful yet gentle ultrasonic waves in only three minutes or less. No scrubbing or polishing is necessary. Fill with water or optional cleaning solution. Guaranteed to remove dirt and grime from eyeglasses, jewelry, small instruments, metal watch bands and more! Bright blue LED illuminated stainless steel tank. Includes a removable basket and bracelet / watch holder. 3 programmable cleaning cycles–3, 5 and 10 minutes.