A kit for an intraocular lens delivery system. The kit has a disposable plunger tip segment with an elongated body having a proximate end and a distal end. The kit has a fastening mechanism, which is a projection, a cavity or both, at the proximate end of the elongated body. The kit has a pushing surface at the distal end of the elongated body. The elongated body and fastening projection or cavity are integrally moulded of polymeric material. The fastening mechanism releasably attaches the disposable segment to a reusable plunger segment of the intraocular lens delivery system. The polymeric material has a flexural modulus of at least 3500 MPa. The kit has a disposable tool with a shaped cavity corresponding to a shaped portion of the disposable segment and is used to attach or detach the disposable segment to the reusable segment. The kit also has a disposable cartridge that is attachable or detachable from a housing.