Chrono Clean is a hand-operated watch cleaning and restoration system. It uses the same baskets as a professional machine, but the basket is spun by hand instead of by a motor. Doing things by hand is what this hobby is all about. The Chrono Clean attaches to standard wide mouth mason jars containing your wash and rinse solutions. You have a complete watch cleaning machine without all of the bulky equipment and electrical cords! Home watchmakers don't have an effective and affordable tool for watch cleaning and restoration, UNTIL NOW! Ultrasonic cleaners are effective, but can be aggressive, loud and use water based solutions which can rust delicate parts and ruin the watch. The other option is to purchase a vintage professional watch cleaning machine to refurbish. These are typically missing parts and need new wiring. The worst part is that they can cost over $1,000. Chrono Clean offers the best of both worlds, it cleans your parts safely and effectively and at a fraction of the cost! [Contents:] Screw On Lid w/ Handle and Crank Arm;16 oz (1 pint) Wide Mouth Mason Jar; Removable Mesh Basket Frame; Small Parts Mesh Basket Lid; Small Parts Mesh Basket; Medium Parts Mesh Basket; Large Parts Mesh Basket