Kids' Protectors Elbow and Knee 4-Piece Set Pink Target age: Approximately 2 to 6 years old. ■Size■ Knee pads: Length 13.5cm x Width 10cm Elbow pads: Length 11cm x Width 8.5cm Target age: Approximately 2 to 6 years old. I prepared these for bicycle practice, but I only used them for a short time once. They are used items, so thank you for your understanding.