1. Age: 2- 30 Months 2. Max Weight; 20kgs 3. Adjustable waistband. Max waist: 130cm 4. Adjustable height for baby in different age. 5. Front carry, face-to -face 6. Memory foam+EPP Anti-O type leg stool. 7. Height is adjustable as the baby grow 8. PE back board to protect your baby's vertebra 9. Foldable hat for baby.