Dear customer, the size of the shoes is subject to the "EU" size shown in the specification. Please check your child's size carefully. If you have any questions, please contact our operation staff immediately after your purchase.Kids Kid Baby Girls Boys Striped Bling Flat Led Luminous Sport Sneaker ShoesDescriptionIt is made of high quality materials, soft hand feeling, no harm to your babyBeautiful and charming design available, make your baby more beautifulGender: Girl/ BoysShoe Upper Material: PolyurethaneSole Material: RubberFashion Element: LuminousClosure Type: VelcroStyle: Casual, fashion, partyPackage content: 1 pair of baby shoes (without shoe box)Note:Insole length = foot length + 0, 8 cmM, means the standard widthThe button battery has natural wear and the battery life is 5-10 hours. If the battery runs out, it will not affect the daily use of the shoes.Please allow 1-3mm error due to manual measurement.If you are not sure, whichSize: 21 Insole Length: 13.5cm/5.3" Recommended Age: 15-18 Months EU: 22.5 UK: 5.5 US: 6.5 Suitable for: ToddlerSize: 22 Insole Length: 14cm/5.5" Recommended Age: 18-24 Months EU: 23 UK: 6 USA: 7 Suitable for: ToddlerSize: 23 Insole Length: 14 .5cm / 5.7" Recommended Age: 2-2.5 Years EU: 23.5 UK: 7 US: 8 Suitable for: ToddlerSize: 24 Insole Length: 15cm / 5.9 " Recommended Age: 2.5-3 Years EU: 24 UK: 7.5 US: 8.5 Suitable for: ToddlerSize: 25 Insole Length: 15.5cm / 6.1" Recommended Age : 3-3.5 years EU: 25 UK: 8 US: 9 Suitable for: ToddlerSize: 26 Insole length: 16 cm / 6.3" Recommended age: 3.5-4 years EU: 26 UK: 8.5 US: 9.5 Suitable for: small childSize: 27 insol Lenght: 16.5cm / 6.5" Recommended Age: 4-4.5 Years EU: 27 UK: 9 US: 10 Suitable for: Little KidSize: 28 Insole Length: 17cm / 6 .7" Recommended Age: 4.5-5 Years EU: 28 UK: 10 US S: 11 Suitable for: Little KidSize: 29 Insole Length: 17.5cm / 6.9" Recommended Age: 4.5-5 Years EU: 28.5 UK: 10.5 US: 11.5 Suitable for: Little KidSize: 30 Insole Length : 18CM / 7.1" Recommended Age: 5-5.5 Years EU: 29 UK: 11 US: 12 Suitable for: Little Kid