Description: Features: 1. Professional-grade nail roller design for easy salon-quality nail polish application, smooth and residue-free. 2. High-precision ball bearing technology conforms to the nail's curve, effectively controlling the amount of nail polish used and preventing drips and contamination. 3. Ergonomic handle design for a comfortable and non-slip grip, preventing fatigue during extended use and improving efficiency and precision. 4. Compatible with various nail polishes, UV gels, base coats, and top coats, meeting diverse nail art needs and offering strong compatibility. 5. Reusable and washable, environmentally friendly, reducing material waste and making it an ideal choice for nail technicians and home users. Comments: 1. The manual measurement tolerance. Please don't mind. 2. Due to differences between different monitors, the image may not reflect the actual color of the item. Thank you very much! 3. SKU color is the color of the product packaging. Package includes:1* Professional nail polish rollers/1* set of Professional nail polish rollers