Key Lock Mechanism: The retrax truck bed cover features a key lock mechanism for added security. Hand Control: The retrax truck bed cover has a hand control for easy operation. Stylish Design: The retrax truck bed cover has a stylish R608 design. Durable Construction: The retrax truck bed cover is constructed from durable materials. Fits Most Trucks: The retrax truck bed cover is designed to fit most standard and large size pickup trucks. 2-Keys for Retrax Truck Bed Covers Key Codes R600-R611 SafeCo Brands