Abstract: The present invention relates to an improved, multifunctional truck bed cover system. The truck bed cover system comprises a plurality of solar panels embedded in a primary truck bed cover and an additional two to three panels configured to be deployed over a cab of the truck using an aluminum frame. The primary truck bed cover is configured to be pivotally movable and inclines using a pair of hinged arms, the hinged arms have movable members that laterally move along channels positioned on sidewalls of the truck bed to incline and decline the truck bed cover. The system can recharge the main battery of the truck and can also recharge an optical or auxiliary battery coupled to an inverter for providing electric power to external items connected to a power socket positioned in the truck bed.

Abstract: A sander according to the present application provides a sander with a rotatable plate which can be locked by hand. Specifically, the sander of the present application has a main body and a sanding head mounted below the main body. The main body has a housing, a motor and a coupling mechanism contained in the housing. The sanding head has a sanding plate rotatably connected to the base plate and the base plate and/or the sanding plate may be connected to the coupling mechanism. The base plate may also have a locking means to lock the sanding plate. The sanding head of the present application may also have a rotatable sanding plate to allow for more efficient use of the sanding paper and a locking means that can be used to lock the sanding plate to provide simpler, easier and more reliable manual locking.