You can measure your nails at home using the sizing chart and a measuring tape. Please make sure to measure in millimeters.
If you are unsure of your nail measurements you purchase a sizing kit prior to ordering.
Once you have sized your nails, you can determine whether you fit a predetermined nail size (XS, S, M, L). If your nails do not fit a predetermined size, simply select the "Custom" option in the size dropbox. At checkout, enter your nail sizes in the "Special Instructions for Seller" section.