Thank you for viewing! (^-^) This is a lacing toy made by sewing numbers and hook-and-eye fasteners onto felt pieces. By threading the string through the holes, children can develop fine motor skills and concentration. Suitable for children aged 1 year and up! It is used in Montessori classrooms ♫ ~How to Play~ ▪ Count the numbers (can be done while lacing the string) ▪ Connect with hook-and-eye fasteners ▪ Stack the pieces ▪ Learn the numbers ▪ Learn the colors ▪ Felt: Made in Taiwan, fabric that is resistant to deformation ▪ Hook-and-eye fasteners: Made in Japan ▪ Cotton: Made in Japan, washable type ▪ Round pieces: Approximately 4 cm ▪ String: Approximately 40 cm Also, the parts are hand-washed before listing to check for any dirt or color fading during production, so you can use them with peace of mind!