A male form arranged as an attachment element for a front end of a plunger for an injector, the injector being configured to implant an intraocular lens in an eye, the male form comprising: an elongate carrier part, a front part arranged at one end of the elongate carrier part, the front part having a front side and being made of an elastically deformable material, the deformable material being compressible at least in the direction of a longitudinal axis of the male form, and the front side including a first peripheral side (22, 34) and an opposite second peripheral side (23, 35), and at least one elongate indentation (19, 33) formed in the front part and being open at the front side, the at least one indentation extending between the first peripheral side (22, 34) and the opposite second peripheral side (23, 35) and opening out at the first peripheral side (22, 34) and the opposite second peripheral side (23, 35), the at least one elongate indentation (19, 33) dividing the front part, at least at the front side, into at least two front-part segments (24, 25, 36, 37, 38, 39), characterized by the at least one elongate indentation (19, 33) forming a predetermined bending point, the front-part segments (24, 25, 36, 37, 38, 39) being bent along the predetermined bending point and moving toward one another upon application of a force to a peripheral side (22, 23, 34, 35) of the front part, and the at least one elongate indentation (19, 33) comprising a bottom line (26, 40), which is a deepest point of the at least one elongate indentation (19, 33), the bottom line (26, 40) being shorter, as seen in the direction of the longitudinal axis (B, C) of the at least one elongate indentation (19, 33), at the at least one end of the at least one elongate indentation (19, 33) than a boundary edge (27, 28) bounding said at least one elongate indentation (19, 33) and formed on the front side, of the at least one elongate indentation (19, 33). an elongate carrier part, a front part arranged at one end of the elongate carrier part, the front part having a front side and being made of an elastically deformable material, the deformable material being compressible at least in the direction of a longitudinal axis of the male form, and the front side including a first peripheral side (22, 34) and an opposite second peripheral side (23, 35), and at least one elongate indentation (19, 33) formed in the front part and being open at the front side, the at least one indentation extending between the first peripheral side (22, 34) and the opposite second peripheral side (23, 35) and opening out at the first peripheral side (22, 34) and the opposite second peripheral side (23, 35), the at least one elongate indentation (19, 33) dividing the front part, at least at the front side, into at least two front-part segments (24, 25, 36, 37, 38, 39), characterized by the at least one elongate indentation (19, 33) forming a predetermined bending point, the front-part segments (24, 25, 36, 37, 38, 39) being bent along the predetermined bending point and moving toward one another upon application of a force to a peripheral side (22, 23, 34, 35) of the front part, and the at least one elongate indentation (19, 33) comprising a bottom line (26, 40), which is a deepest point of the at least one elongate indentation (19, 33), the bottom line (26, 40) being shorter, as seen in the direction of the longitudinal axis (B, C) of the at least one elongate indentation (19, 33), at the at least one end of the at least one elongate indentation (19, 33) than a boundary edge (27, 28) bounding said at least one elongate indentation (19, 33) and formed on the front side, of the at least one elongate indentation (19, 33).