This black bottom case unit is designed for use with Compaq EVO laptops, specifically the N1000C, N1000V, and N1020V models. The unit is compatible with these models and is made from high-quality materials to ensure durability and reliability. This item is a replacement part for your laptop. The item is sold as a unit, and it includes the bottom base cover only. Please note that the item is used. The color of the item is black, and it is compatible with the N1000C, N1000V, and N1020V models. The item is an excellent replacement for a worn-out or damaged unit.