Convenience and Health : These professional nail files are perfect for your natural, crystal and acrylic nails as well as ultra-thin sensitive nails. The small size nail file set is portable and lightweight, which is easy to carry, great for travel, home use and salons. Beginner and Professional : Our gel nail files included the comprehensive nail file which can meet your required.It is suitable to use not only for professional manicurist but also for a nail beginner. Quality Guarantee & Professional Service -- nail art products are guaranteed by our satisfaction promise, if you have any complaints or nail arts questions, please feel free to contact us, we are always here to help you make thing right.