The invention relates to a package comprising a case having a bottom and a peripheral rim, the package also comprising a cover rotatably mounted on a side carrying the peripheral rim, and holding means for maintaining an object to be transported in the case, characterized in that the holding means comprise a frame rotatably mounted on the peripheral rim in the vicinity of the bottom of the case, the holding means also comprising elastically deformable means extending inside the frame, and a connecting rod for connection between the frame and the cover, the connecting rod being rotatably mounted on the cover and on the frame, the connecting rod, the cover, the side carrying the peripheral rim and the frame together forming a deformable parallelogram.