Here are sizing instructions in case you opted out of purchasing a sizing kit:
What you'll need
1) Clear tape
2) Ruler or measuring tape
3) Pen or fine tip marker
4) Plain paper
Step 1 : Take the tape and place it flat across your nail bed, leaving some to overlap onto your finger for easy measuring and removal
Step 2 : With your fine tip marker or pen, mark a line along the sides of your nail. Make sure to mark against the widest part of your nail bed
Step 3 : Remove the tape from your finger and place it flat on the plain paper
Step 4 : With your ruler or measuring tape, measure the distance in millimeters (MM) between the two dashes you made on your tape
Step 5 : Using that number, match it with a corresponding nail measurement from our sizing chart. That number is the size of that particular nail
Step 6 : Repeat each step until your nails are measured. You only have to measure one hand to get your set size. In the event that one hand is drastically bigger than the other, then we advise measuring both hands.
Match with a corresponding size (XS - L) and that is your Claws nail set size
There may be cases where the numbers don't match up perfectly. In this case, make sure you are picking the best size for your hands. We recommend going a size up.