The invention relates to a code carrier that has a code carrier coil, whereby the code carrier coil is configured as a ring shaped like a triangle or the projection of the code carrier coil in the direction of the coil axis is shaped like a triangle. The code carrier coil or the code carrier, including the code carrier coil, is part of a cap that can be placed onto a corner of a cuboidal object and that functions as a physical corner protector, whereby the coil axis intersects the planes encompassed by the side surfaces of the object, all at an angle between 5° and 85°, and a body diagonal of the object pierces the triangle. The invention also relates to a code carrier set consisting of an object having a base area with a first edge and a second edge running obliquely, crosswise or perpendicular to the first edge, and consisting of a code carrier that is arranged on or in the object and that has a code carrier coil, whereby the perpendicular projection of the coil axis onto the base area runs obliquely to the first and second edges of the base area.