WEAR RESISTANCE AND HEAT RESISTANCE: These nail sanding caps are wear-resistant, rust-proof and durable, in order to prevent overheating damage and have heat resistance. Use high-quality fine sand, not easy to throw sand. | EASY TO USE: Easy to use, reducing your time by half. Use around the nails, which means you can trim the cuticle, the side walls or keep it clean under the nails. | COMPACT AND UNIQUE DESIGN: Portable design and light weight, convenient for personal and family use anytime, anywhere. Superb craftsmanship and proven skin protection. | MULTIPURPOSE: Those sanding caps are suitable for nail polishing, nail cleaning and care, peeling, etc., suitable for manicure, pedicure, etc You can sharpen, grind, retouch, carve, smooth, polish, and reshape nails with gel and acrylic nails, and then remove nails or dead skin. | COMPATIBILITY: Suitable for most electric or rechargeable manicure nail file machines. Superior craftsmanship and rigorously tested design protect your skin from harm.