IMPORTANT: CPO strongly recommends taking a few measurements of your truck before ordering any truck box. Measure 1) the width and height of your truck bed and 2) the space between the wheel wells and the cab. Knowing these measurements will allow you to select a box that fits your truck properly. Gear-Lock self-adjusting dual rotary locking system always latches and closes for superior security Self-aligning latch pin pivots from side-to-side to engage with the Gear-Lock System; no adjustments required 3-Layer Laminated RSL Rigid Structural Lid has a reverse beveled edge liner and an inner layer of rigid foam insulation to create the most rigid strongest aluminum lid we ve tested Reinforced high-strength body and full-wide lock console resists cargo damage and protects the lock system End-mounted push buttons provide easy access; lid locks and unlocks from either side for security and safety