Option 1
Measure your bare nail (no polish or gel) by wrapping a soft tape around its widest point. Align the zero mark with your left nail edge, press snugly to the curve, then read the millimeter value at the right edge for an exact fit.
Option 2
With bare nails (no polish or gel), wrap a strip of white paper around the widest part of your nail and mark both edges. Then flatten the paper and measure the distance between your marks with a ruler—or use a ruler app on your phone for an exact millimeter reading.
Don’t guess your press-on fit—use our detailed chart to match your nail’s actual width (in mm) to the correct tip number for thumb through pinky. Available for Mid-Long Rectangle, T-Shape, Short-T Almond, Short Square/Round, and Short Square Round styles.