GT SONIC 750ml Digital Ultrasonic Cleaner for Jewellery, Dentures, Glasses, Disk, Coins and More, 40KHz 40W Ultrasonic Cleaning Machine with 5 Timer Setting, Stainless Steel Tank and Internal Basket
I really enjoyed using this, and to think that you are only using water to clean your items gives you peace of mind that nothing abrasive will effect your items. My diamond ring came up a treat and so much rubbish came out of it.