This Wheelchair Safety Harness and Seatbelt is perfect for adding additional safety and security to those that are in a wheelchair. The 48 in long, 1,75 inch wide belt assists those suffering from spasticity, seizures, or who are at risk to fall out of their wheelchair. The function is very similar to a car seatbelt, fits comfortably and adjusts easily. It is very easy to install. To install, remove the bottom screws from the left and right side of the wheelchair backrest. Insert these screws through the grommets on the belt. Reinsert the screws into the screw holes and tighten them.