This Product features one pair Brilliant Yellow brand new 14-SMD-1210 LED arrow lights,can be hidden behind the side mirror for any cars, SUVs or trucks as turn signal lights. We have redesigned this LED arrow with the LED lights embedded/hidden inside the circuit board so it is thinner than a Quarter. Thinner means less gap, so it will make the installation process easier for you. Simply remove the side mirror, and place the LED arrows against the back of the mirror and tap the wires to the turn signal lights. 1 Set(2 Pcs One Pair) Color:Blue 14 pieces 1210 type SMD LED lights Ultra slim design, only 12mm/0.047" thin With the arrow pointing right length:35mm/1.38" Put LED lights behind the rear mirror, virtually invisible! Highly recommend professional installation since it requires opening up the entire side mirror(not including installation instructions) Installation: Remove the base of the side mirror Place the LED arrow inside the back of the mirror Connect and tape the wires to the turn signal light. *The arrow will light up when the turn signal is in operation, or else it will remain invisible