Roll-N-Lock E-Series electric bed covers are made in the USA and feature a patented four-point locking mechanism to prevent theft. The cover has a weight capacity of up to 1,000 kg and weighs less than a tonne. It is available in black or white, depending on the application. The cover can be removed from the truck at any time during its life. Notably, it was first introduced by Roll-N-Lock in 2015.