The UPPAbaby Car Seat Adapters are designed to securely attach a Maxi-Cosi, Nuna, Cybex, or Clek car seat to your UPPAbaby stroller. Made in China, these adapters provide a convenient and safe solution for transporting your child in their car seat while out in the stroller. The UPPAbaby brand ensures high quality and durability, making these adapters a reliable choice for parents on the go.