Features: Thick padded sides and lumbar support keep your children secure while riding Comfortable sides provide support Mesh bottom makes cleaning a breeze All materials are made phthalate-free Machine washable Compatible with all child trailers that have a 5-point safety harness Recommended ages: 3-12 months Approximate height: 25 in. - 31 in. Under 6 months: Snuggler should be used for strolling only Over 6 months: Snuggler may be used for jogging or strolling in a Burley trailer or stroller if your child is able to sit upright unattended Over 12 months: Snuggler may be used for towing your child behind your bicycle if your child may sit upright unattended while wearing a bicycle helmet Please consult your pediatrician before using this product