NOMAH prevents toddlers from pushing the chest clip down and freeing their arms from the safety of their car seat. NOMAH is made of durable rubber and installs easily to the existing harness straps of the car seat. NOMAH is proudly made in the USA. NOMAH uses the existing chest clip and harness straps of the car seat. It does require the back of the car seat to be open and the harness straps to be accessible from the back to be installed. NOMAH is shipped with installation instructions or follow the link for a step-by-step video tutorial. Stop the stress and worry of your child getting their arms free from their car seat with NOMAH. https://youtu.be/jptK_NbfNXM NOMAH is Patent Pending 2022