I use the coin method, which requires the customer to send me a picture of both hands, two picture for each. Each picture for one hand should involve your 4 main fingers directly facing down showing your nails, the other photo should include your thumb for the same hand with the same angle. This should be done for each hand (left hand and right hand) this should also have good lighting along with a coin of your choice next to the hand. This will allow me to size your fingers accurately without the chance of not being able to see where your nail bed start and end.