Features: 【5-in-1 High-Efficiency Grinding】Precise steel multi-pattern operations—callus removal, engraving, grinding, polishing, and buffing—in a go, eliminating the hassle of frequent tool changes. 【Medical-Grade steel 】High-hardness steel offering 50% enhanced wear resistance, extending life threefold compared to ceramic heads. Not need heat design prevents nails bed damage. 【0.1mm Fine Teeth】 precise cutting gently removes cuticle dead skin without irritation. 【Universals Compatibility Design】Universals shaft cores fits mainstream nails polish removers, eliminating the need for additional adapters and simplifying device compatibility. 【Cross-Border Quality】Certified with rust-proof coating for high-humidity environments, meeting the rigorous durability demands of nails salons in Southeast Asia, South America, and beyond. Specifications: Component: Medical grade steel Craftsmanship: multi-texture design, 0.1mm extremely fine tooth pattern, anti-rust coating Size: 5cm length and standard universals shaft cores Adaptable to mainstream nails polish removers, not requier additional conversion head Practicality: Efficient grinding Types: M/F/XF/ XXF Optional Technical parameters: wear resistance increased by 50%, life extended by 3 times, not damage to the nails bed Note: Passed certification, adaptable to high humidity environment Package Includes: 1PC stainless nails polishing head note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.