... 20 to 80 The features of specification:(ultrasonic jewelry cleaner,apply to clean any small parts) ... groove size150*95*52mm The function of ultrasonic jewelry cleaner,apply to clean any small parts Ultrasonic ... bronze ware, antiques, Jewelry, rings, diamond, bracelets,watches3.eyeglasses, sunglasses, optical lenses, tattoo instruments, and piercing.4. shaver head, ...