Hi all, We’re selling a Trail-gator bike attachment system. $30 obo. We got a couple good years of use out of this accessory that lets you attach a child’s bicycle to the back of your own bike. You then can easily detach their bike when you reach your destination. I’d say it’s good for ~3-6yos who can ride on their own but don’t have the endurance for a longer ride yet. http://www.trail-gator.com/ I believe all the hardware is in the two bags. Instructions available at the link above. Thanks! -Jeremy