Using measuring tape, or piece of sticky tape with a marker & ruler, place it over the curve (width) of your nail at its widest to check your nails' precise size.
Size selection is required in your order form once it's been sent
NOTE: the soft gel tips tend to tighten once the gel cures on it so it is recommended that you size up if you are unsure
Rather have the tips a tiny bit big than way too small
I will usually have the tips in your set be at 1 to 1.5 millimeters of room to fit your precise nail measurement
If you are ordering a second time let me know of any adjustments you wish to make so we can an achieve a more comfortable fit
Depending on the shape of your nail beds and the specific soft gel tips' shape and length it can fit completely differently. For example, extra short almond is quite rounded vs a short square tip that has a much flatter fit.