Features: -Your Agio Z4 Model 2021 stroller easily converts to a double stroller with this Agio Z4 second seat (stroller and double adaptors sold separately) -Full-size seat, same exact seat as the Z4 single stroller seat -Tilt in space reclinable seat -Can hold up to 50lbs -Can have either seat facing either way; many configurations -The Z4 Model 2021 is the lightweight full-featured convertible stroller (sold separately)