Professional and Durable - Our ultrasonic retainer cleaner machine is made of high-quality ABS material, add 1-2 drops of cleaning solution and clean any stubborn stains before using the cleaner. All-Around Deep Cleaning - This ultrasonic jewelry cleaner high-frequency sound waves to make the water produce vacuum bubbles to scrub clean every nook and cranny of your items without damaging them, leaving them looking like new. Low Noise & Portable - The food-grade SUS 304 tank can hold up to 301ML-500ML and is perfect for cleaning eyeglasses, watches, jewelry, and other small items. It's easy to take this portable ultrasonic cleaner anywhere you go. Perfect Gifts for Friends & Family- This ultrasonic cleaner is great for cleaning glasses, rings, bracelets, necklaces, dentures, retainers, razor blades, and more. It's an excellent gift for friends and family who want to have an easy and relaxing daily cleaning experience. We also offer a 100% satisfaction guarantee and a 1-year warranty.