This would be a regular dice which is used in the vast majority of board games that exist. The shape of this is formally known as a Quadrilaterally-faced hexahedron, also known as a cuboid. There are various versions of a hexahedron such as a Rectangular cuboid or a Rhombohedron, one of which has rectangular faces and the other has rhomboid faces. The hexahedron has 12 edges and 8 vertices in total
