Nail polish tool - A versatile nail art tool for personal use and sharing with friends, especially for girlfriends. Supports basic polish application and entry level nail art tasks, making DIY manicures easier and neater. Nail buffer - Suitable for professional, salon, nail art school/college, nail art artist, and home use. Prepares and smooths nail surfaces to enhance polish adhesion and finish. Nail files - For both professional use and personal use. Shapes and refines natural nails and nail extensions, helping achieve the desired nail profile. Nail brush rub - Can be used to file natural nails, false nails, nail extensions, etc. Provides shaping and finishing assistance as part of a complete manicure routine. Use scenarios - At home with friends for DIY nail art practice and group manicures - In a salon or nail art class for nail prep, shaping, and finishing - In a personal grooming routine to maintain and refine nails and extensions