100% Polyester [Support Head and Neck for Baby] The infant car seat head support give support to the head and neck for baby so that keeps little ones comfortable and secure in the car seat, stroller, baby swing and bouncer [Comfortable and Soft] Our infant car seat insert is made of premium material which is ultra soft and filled of soft padding, giving full comfort to babies [Age Range] Offering comprehensive body support for infants, from birth to 10 kg, removable inserts create additional space for larger infants, making it perfect for infants and premature infants, from preterm to 12 months of age [Package and Universal Size] 2-Piece infant car seat head support included which fit most car seats, such as Graco,Doona, Chicco, Britax, Evenflo, Baby Trend. You have no need to worry about size problem [Easy to install and use] Use plastic snap to keep support securely in place. In addition, it works with both 3-point and 5-point harness systems in most car seats and offers reinforced openings for seat-belts. Double up 2 supports for smaller baby. Use the larger support Individually for baby when they grow, which leave more room for their head Pro Goleem is striving to make Infant products using healthy material and cute designs and caring about every detail. The infant car seat head support give support to the head and neck for Infant so that keeps little ones comfortable and secure in the car seat, stroller, Infant swing and bouncer. Our infant car seat insert is made of premium material which is ultra soft and filled of soft padding, giving full comfort to Toddlers.