KEY FEATURES SEE TEST RESULT SEE HOW TO INSTALL DOWNLOAD MANUAL REGISTER RIDESAFER Click Arrow Button to see how to install step-by-step. EASY 1-2-3 STEP INSTALLATION 1. Fasten seatbelts as adult normally would 2. Insert seatbelt into lap belt guides & snugly adjust 3. Insert shoulder belt into shoulder belt guide and close cover In Passenger Seat   In the center of the back seat with Tether belt         copyright © 2009, SAFE TRAFFIC SYSTEM, INC.