Upper Material:PU Sole Material:Rubber Toe Style:Round toe Heel High Style:Flat-Heel Closing Method:Slip-On Shoes Heel High:2.5cm/1.0 Platform Heigh:1.55cm/0.6 Included: 1 pair of shoes Size chart: Size:21 Insole Length :13CM/5.1 Recommended age :12-15 Months US:6 UK:5 EU:22 Suitable for: Size:22 Insole Length :13.5CM/5.3 Recommended age :15-18 Months US:6.5 UK:5.5 EU:22.5 Suitable for: Size:23 Insole Length :14CM/5.5 Recommended age :18-24 Months US:7 UK:6 EU:23 Suitable for: Size:24 Insole Length :14.5CM/5.7 Recommended age :2-2.5 Years US:8.5 UK:8 EU:24 Suitable for:Toddler Size:25 Insole Length :15CM/5.9 Recommended age :2.5-3 Years US:9 UK:8.5 EU:25 Suitable for:Toddler Size:26 Insole Length :15.5CM/6.1 Recommended age :3-3.5 Years US:9.5 UK:9 EU:26 Suitable for:Toddler Size:27 Insole Length :16CM/6.3 Recommended age :3.5-4 Years US:10 UK:9.5 EU:27 Suitable for:Toddler Size:28 Insole Length :16.5CM/6.5 Recommended age :4-4.5 Years US:10.5 UK:10 EU:27.5 Suitable for:Little Child Size:29 Insole Length :17.5CM/6.9 Recommended age :5-5.5 Years US:11.5 UK:11 EU:28.5 Suitable for:Little Child Size:30 Insole Length :18CM/7.1 Recommended age :5.5-6 Years US:12 UK:11.5 EU:29.5 Suitable for:Little Child