Thank you for viewing! This is a foot measurement sheet given when purchasing New Balance sneakers. Children's feet grow quickly, but it can be difficult when they don't tell you if their shoe size fits properly(^^) This can help you determine what size is best! It's also good for keeping a record of your child's foot growth. Two sheets are included. How about for siblings? Brand new, unused. Will ship via Mercari delivery. #NewBalance #GrowthRecord #newbalance #Shoes #KidsSneakers