52cm: suitable for height 46-52cm, 0-2 months 59cm: suitable for height 52-59cm, 1-3 months 66cm: suitable for the height of 60-66cm, 3-6 months It's cheap and good quality, kids love it. Moms and dads buy 3-4 sets with different colors and different patterns at one time, the first piece is Wearing, the second piece is tanned, and the third piece is prepared. When the baby has clothes for outer wear, he (she) must still need a few sets of clothes for inner wear. Our shop also has very beautiful underwear for you to choose from. We recommend this inner wear for you You can search in our shop like this 2pcs Newborn baby underwear suit 0--6 month baby clothing set baby sleepwear long sleeve four seasons 2pcs Newborn baby baby clothing set baby clothes baby sleepwear long sleeve 52cm-66cm 0-6 month for baby boy and girl Features: Class A pure cotton, soft and comfortable, does not hurt the skin, breathable and absorbs sweat without causing heat rash. Use good fabrics for infant underwear, no fluorescent agent Product advantages: 1. Boneless sewing process, the seams are flat and not protruding, and the baby is comfortable to wear 2. Open file design, convenient for mothers to change diapers for the baby 3. Partial lacing makes baby dressing more convenient 4. Soft edging, high-quality pure cotton edging, uniform straight line, not easy to open, and durable 5. The product has passed testing and certification, you can wear it with confidence and take care of your baby's health Applicable gender: Unisex Fabric technology: soft treatment Thickness: General Collar type: V-neck Color:Pink ear wheat, blue ear wheat, yellow ear wheat, pink fox, blue fox, flowers Suitable age: newborns (0 1 years old, 80cm and below) Suitable season: spring, autumn, unlimited season, spring and autumn, winter, summer Pattern: Cartoon Sleeve length: long sleeve Element: Outfit Fabric name: Cotton Main fabric composition: Cotton Main fabric composition content: 100 (%) Security level: Class A Suitable height:52cm (recommended 0-2 months), 59cm (recommended 2-4), 66cm (recommended 3-6 months)