KneeGuard Kids 3 InGarden Foot Rest Car Seat Comfort No More Dangling Legs Preowned but in great shape. A few scratches. About this item Package Content Age: The package includes one Car Seat Footrest that's compatible with all car and booster seats. The Footrest should be used as soon as kids are walking and are sitting in a forward-facing car seat up until their legs reach the floor of the vehicle. Installation: The Footrest easily attaches to the latch behind the seat. For cars that don't have the latching system it also comes with hooks that slip under the seat. The footrest can also be easily folded down for easy access in and out of the car. Medically Approved/Recommended: Dr. Lee Am a prestigious orthopedic surgeon has highly recommended the Footrest as the number one travel accessory that every parent should have. The Footrest prevents kids from misbehaving by increasing their comfort as well as providing long term leg protection for their knees. Adjustability Ease of use: The Footrest has an easy height and angle adjustability to fit different heights and different comfort levels. Crash Tested Safety: The Kneeguard Kids successfully passed intense crash and safety testing including standards set forth by FMVSV 213 so there is no compromise on children's safety when using the Footrest. The Kneeguard Kid's footrest has successfully been patented in the US.