Ruggedized Design:Using top-tier organic s, copper, and aluminum, this piece is tough and resilient. Human-Centric Engineering: With easy-to-understand time control and speed adjustment knobs, the machine is straightforward to start using, even for first-time users. The clear polishing barrel also allows for easy observation of what's happening inside, helping you maintain a controlled and smooth polishing process. Professional-Grade Sealing: The product features 2 seals, a secure buckle, and a closed structure-all of which work together to stop liquid or beads from leaking out while polishing. This ensures your working space stays neat throughout the process. Adjustable Design:This product offers 5-speed gears to meet various polishing needs. It can be set to operate for up to 1 hour, eliminating the need for constant supervision, and making it convenient and effortless., Manufacturer: SOYWIM