1Come in 12 different sizes to suit different nails.These nails have numbers on the surface and you can choose the size suitable for your nail. 2All you need to do is simply brush the gel into the nail tip and then place it on the nail to hold it for a few seconds.Finally, take the false nail tip off. 3Suitable for most people with different finger sizes, applicable for professional salons, nail salons, home use, nail schools, etc. 4Unique design with proper curvature and length design makes nails strong enough and not easy to bend or break. 5Used for nail lengthening, UV nail, manicure study, etc. Packed in storage box for easy using and carrying.