The invention relates to a prosthesis part having a conical protrusion for connecting to an additional prosthesis part having a complementary conical bore, wherein the conical protrusion has a lateral recess for the engagement of a securing element, and wherein the prosthesis part with the conical protrusion has a removable cone attachment, said cone attachment having a lateral recess for the engagement of a securing element. The invention further relates to a prosthesis having a prosthesis part according to the invention and a set of prosthesis parts, wherein a prosthesis part according to the invention is formed.
