a double booster seat

Graco 4Ever DLX 4-in-1 Convertible Car Seat

Bugaboo Kangaroo Single to Double Full-Size Stroller

Bumbo Toddler 3-in-1 Booster High Chair and Tray, Breige/White Sand, 2 Pack

Chicco FastLock Hook-on-Chair Booster Seat

Evenflo Gold Shyft DualRide Infant Travel System with Car Seat and Stroller Combo w/Carryall Storage Bag

Evenflo Shyft DualRide Travel System with Carryall Storage

Twin Wales Convertible Sofa Bed - Powell Company

DobleePy Twin Side-by-Side Double Stroller, Lightweight Compact Fold, Adjustable Recline Seat & Extendable Canopy

Evenflo Gold Revolve 360 Slim 2-in-1 Rotational Convertible Car Seat

Bugaboo Donkey 6 Sibling Add-On Seat and Platform

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)

Chicco OneFit ClearTex All-in-One Convertible Car Seat

Joie Ginger DLX and Rue Travel System

Double Stroller, Tandem Foldable Twin Stroller for Newborn & Toddler – Reversible Seat 5-Point Harness Adjustable Canopy with Storage

Double Stroller, Tandem Baby Stroller with One-Hand Fold, Reversible Seat, 5-Point Harness, Large Storage Basket, Multiple Recline Positions

Mountain Buggy Duet V3 Double Stroller in Black

Britax Poplar Convertible Car Seat

Britax One4Life ClickTight All-In-One Convertible Car Seat