Measure your nails in 2 steps
Get a millimeter ruler
You need a ruler with millimeters or a flexible measuring tape. If you don't have one, you can use a strip of paper, mark the width of your nail, and then measure the paper with a ruler.
Compare with the table and choose your size
Measure the width of each natural nail, side to side, not including the skin on the sides. Compare your measurements to the table below and choose the size — S, M or L — that's closest.
Two ways to measure — pick the one you prefer.
Size chart
Width of each finger in millimeters, by size. Measure and compare — you choose your size, no need to send us anything.
Tip: If you're between two sizes, choose the larger one — it's better to have a little extra room than for it to feel tight. Press-ons shouldn't touch the skin on the sides.