From the Manufacturer:
"Create an instant hopscotch course that children can use indoors or out! The 10 rugged foam mats easily interlock to create a 78 1/2" hopscotch course. Children just toss the 4 included markers onto the mats to hop on numbers 1 through 10!
Recommended Age
3 yrs. - 7 yrs. / Preschool - 2nd gr."