LittleSpring Little Girls' Clothing Sets Birthday Dot Cotton Blend Birthday Set Size 1T for height 70-80cm(0-1 years old) Birthday Set Size 2T for height 80-90cm(1-2 years old) Birthday Set Size 3T for height 90-100cm(2-3 years old) Birthday Set Size 4T for height 100-110cm(3-4 years old) Birthday Set Size 5T for height 110-120cm(4-5 years old)