a double booster seat

UPPAbaby Alta V2 High Back Booster Car Seat

Joie Basil 2-in-1 Belt Positioning Booster Seat

Britax Highpoint 2-Stage Belt-Positioning Booster Car Seat

Safety 1st Boost and Go Lite Booster Car Seat - Black: Machine Washable, Forward Facing, Includes Cup Holder, Backless

Graco TurboBooster 2.0 LX Highback Booster Car Seat with Safety Surround: Machine Washable Seat Pad, Foam, 10.76 lbs

Harmony Defender 360 MAX SIP 3-in-1 Combination Deluxe Harnessed Booster Car Seat - Black: 5-Point Harness, Fits 3 Car Seats Across, LATCH Compatible

Safety 1st Boost & Go Booster Car Seat

Joie Basil Backless Belt Positioning Booster Seat

BubbleBum Inflatable Car Booster Seat - Travel Booster Seat - Black Style

BubbleBum Inflatable Car Booster Seat - Travel Booster Seat - Pink Style

BubbleBum Teleport Booster Car Seat, Kids Seat for Car 40-100 lbs, Telescopic Portable Carseat, - Foldable for Travel, - Black

BLUEY | 2-in-1 Car Seat

Baby Trend Ally Newborn Baby Infant Car Seat Carrier Travel System with Harness and Extra Cozy Cover for Babies Up to 35 Pounds, 2-Pack, Stormy

Baby Trend Ally Newborn Baby Infant Car Seat Carrier Travel System with Harness and Extra Cozy Cover for Babies Up to 35 Pounds, Modern Khaki (2 Pack)