Hello, dear customer friend, the healthy growth of children is a concern for every parent. Let's start with a pair of shoes Before purchasing, please measure the foot length shown in the picture and do not place an order directly. As children grow up quickly, it is recommended to purchase a slightly larger one Here are some characteristics of shoes for you: The function of shoes: breathable, non slip, wear-resistant Heel type: flat bottomed. Suitable for both boys and girls Shoe upper material: synthetic leather Sole Material: Rubber Packing list: 1 * pair of shoes (excluding box). Insole length: Foot length+(0.5~1cm)=Insole length. Size 21- (insole length 13.5cm); Size 22- (insole length 14cm); Size 23- (insole length 14.5cm); Size 24- (insole length 15cm); Size 25- (insole length 15.5cm); Size 26- (insole length 16cm); Size 27- (insole length 16.5cm); Size 28- (insole length 17cm); Size 29- (insole length 17.5cm); Size 30- (insole length 18 cm). be careful: (1) Due to manual measurement, please allow for an error of 0.5-1 centimeter. Please make sure you don't mind before bidding. (2) Due to display differences, colors may vary. Please understand (3) The other items in the picture are not included in the order. (4) For more high-quality products, please come into the store to learn more about quality assurance