dear customer please read the size chart below carefully before order to save your money or time, please measure your baby to see which size below can fit her very well,if they are not your baby's size, please contact us for custom make instead of buying the prime product,we can list another link for you to buy.a custom made dress will take around 10 days to receive after your order.(not 25-45days long time as Amazon syetem show) We need chest ,waist(or belly) measurement, from shoulder to skirt bottom measurement, height from head to toe. Size 0 to 3 months: Chest: 16” (40.64 cm) Size 3 to 6 months: Chest: 17” (43.18 cm) Size 6 to 9 months: Chest: 17.5” (44.5 cm) Size 9-12 months: chest 18''(45.7 )Height: 28-30” (71.12 cm - 76.2 cm) * Weight: 18-24 lbs Size 12-18 months: chest 19'' (48.26cm)Height: 30-32” (76.2 cm – 81.28 cm) * Weight: 22-28 lbs Size 24 months: chest 20'' (50.8cm)''Height: 32-34” (81.28 cm – 86.36 cm) * Weight: 26 - 30 lbs Size 1T Height: 31” (78.74 cm) * Weight: 20- 26 lbs * Chest: 17.5” (44.45cm) Size 2T Height: 34” (86.36 cm) * Weight: 26 - 30 lbs * Chest: 19” (48.26 cm) Size 3T Height: 37” (93.93 cm) * Weight: 30 - 34 lbs * Chest: 21” (53.3 cm) Size 4T Height: 40” (101.6 cm) * Weight: 34 - 40 lbs * Chest: 23” (57 cm) Size 5 Chest: 23.5” (59.69 cm) * Waist: 22” (55.88 cm) Tea Length: 32” (81.28 cm) * Ballerina Length: 30” (76.2 cm) * Knee length: 26.5” (67.31 cm) Size 6 Chest: 24.5” (62.23 cm) * Waist: 22” (55.88 cm) Tea Length: 33” (83.82 cm) * Ballerina Length: 31” (78.74 cm) * Knee length: 27.5” (69.85 cm) Size 7 Chest: 25.5” (64.77 cm) * Waist: 23.5” (59.69 cm) Tea Length: 35” (88.9 cm) * Ballerina Length: 33” (83.82 cm) * Knee length: 29.5” (74.93 cm)