Tray for containing electronic components formed by a bearing body, substantially planar, having a first and a second face. First holding structures extend from the first face of the bearing body and second holding structures extend from the second face of the bearing body. Each second holding structure is aligned with a respective first holding structure in a vertical direction perpendicular to the first and the second faces of the bearing body. Each first holding structure is formed by first protrusions mutually spaced by first spaces and arranged along a first closed line; each second holding structure is formed by second protrusions mutually spaced by second spaces and arranged along a second closed line. Each second protrusion is aligned, in parallel with the vertical direction, with the first spaces and each first protrusion is aligned, in parallel with the vertical direction, with the second spaces.

A packaging material packages an object having a main body and a cord integrally connected to one side surface of the main body. The packaging material includes a box body and a cushioning material. The box body has a cylindrical side plate and a bottom plate. The cushioning material is arranged in the box body, and the main body is placed on the cushioning material. The cushioning material has a housing space in which the cord is housed.