The Allen JTX1 Aluminum 1-Child Jogger and Bike Trailer is the perfect two-in-one product for the active parent. It quickly sets up as either a fully functional swivel wheel jogger (with lockout feature to fix front wheel) or bike trailer right out of the box. Its 16-inch rear wheels and 12-inch front wheel (for jogger mode) deliver low rolling resistance and large front and side windows let your passenger enjoy the ride. An extra-large interior compartment delivers lots of room for your little rider. The JTX1 includes a recessed foot area your children's feet and also comes with a removable three-season bug and rain shield. Zippered panels on the Bug and Rain shield make for easy opening and closing. Two rear pockets offer extra storage. When not in use, the JTX1's folding design and quick-release wheels offer easy storage and transportation. Optional Dual-Swivel Wheel attachment (sold separately) allows the jogger to quickly convert to an easy-to-roll swivel wheeled stroller.