Leaving an expensive roof rack system unsecured at a trailhead or boat launch is an unnecessary risk, and the MOS Lock is the straightforward solution. The MOS Lock is a stainless steel padlock designed specifically to secure the MOS UpLift to your vehicle's roof rack crossbars. The U-shaped insert fits directly into the slots on the UpLift base plate for a clean, purpose-built connection that doesn't require any workarounds or additional hardware. One lock is all that's needed to secure the entire system, and two keys are included. Designed specifically for the MOS UpLift Durable stainless steel construction U-shaped insert fits directly into UpLift base plate slots One lock secures the full system to roof rack crossbars Includes 2 keys