Barely Used!! My older son was not ready to be out of a stroller yet and was perfect for him and my little one. He is totally into trains and loved standing up and watching where we were going.

Product Description:
"Hop on Board! Strolling around has never been easier with two children. The versatile Caboose Stand-On Tandem allows an older child to stand on its patented rear platform while a younger child rides comfortably in front. If the standing child tires, they can turn around and rest on the padded rear seat. Fully equipped with a universal car seat attachment system, the Caboose can accommodate an infant in the car seat, so you can use it as soon as your new arrival comes. And parents make out too because the Caboose is lightweight and folds up compactly. It also has a large basket and storage pockets for everything you'll need to take along with you. And the rear platform means no more lifting a heavier older child in and out of the stroller when they want to see or get tired. The Caboose Stand-On Tandem makes strolling with two children a breeze!"

I got it NEW for $179.99 from Babies R Us
http://www.toysrus.com/product/index.jsp?productId=2827345&searchURL=false

Joovy's website URL:
http://www.joovy.com/pages/pd_caboose.php