The Injection Fob is a two piece plastic case that replaces the factory case that comes with the vehicle. For 2016+ Tacomas with push button start only . Injection molded of high strength and impact resistant ABS plastic. Existing valet key, electronics, battery, buttons, and seal are reused (not included with purchase) and packaged into the new case. Instead of an annular snap fit, this design bolts together with socket head cap screws for a more rugged and straightforward approach. Assembly requires 3/32" allen key (included). Made in USA.