the present invention relates to a reusable device for securely holding at least one fragile object against a functional surface solidly fixed to the structure of a satellite or spacecraft during at least one operational phase relating to this satellite , making the objects thus held more accessible and intervention on these objects easier , while at the same time preventing damage to these objects under the effect of sudden accelerations , both during this operational phase and while the hold is being established or while the hold is being released . the device according to the invention is characterized in that it comprises a rigid structure which partially grips this object and which supports at least one fixed jaw and at least one moving jaw substantially facing the fixed jaw , the object being immobilized between the fixed jaw and the moving jaw throughout the period of firm holding .