A kit for the realisation of doors or windows, comprising: a magnetic induction closure device comprising a magnetic induction catch and at least one magnetic induction armature, wherein said magnetic induction catch is insertable in a first housing hole and comprises a first connection plate adapted to be fixed to an edge surface of a panel and wherein said magnetic induction armature is insertable in a second housing hole and comprises a first connection interface adapted to fix said magnetic induction armature to a frame; and a mechanical catch lock comprising a lock body which houses at least a mechanical catch and a mechanical armature adapted to receive said mechanical catch, wherein said lock body is insertable in the first housing hole and comprises a second connection plate adapted to be fixed to said edge surface of said panel and wherein said mechanical armature is insertable in the second housing hole and comprises a second connection interface adapted to fix said mechanical armature to said frame, wherein said magnetic induction catch and said lock body have a shape and dimensions such as to allow their insertion in the first housing hole, wherein said magnetic induction armature and said mechanical armature (1 0b) have a shape and dimensions such as to allow their insertion in the second housing hole, wherein said first connection plate and said second connection plate have a shape and dimensions such as to allow the fixing thereof at the first housing hole, said first connection plate and said second connection plate being substantially identical, and wherein said first connection interface and said second connection interface have a shape and dimensions such as to allow the fixing thereof at the second housing hole, said first connection interface and said second connection interface being substantially identical. a magnetic induction closure device comprising a magnetic induction catch and at least one magnetic induction armature, wherein said magnetic induction catch is insertable in a first housing hole and comprises a first connection plate adapted to be fixed to an edge surface of a panel and wherein said magnetic induction armature is insertable in a second housing hole and comprises a first connection interface adapted to fix said magnetic induction armature to a frame; and a mechanical catch lock comprising a lock body which houses at least a mechanical catch and a mechanical armature adapted to receive said mechanical catch, wherein said lock body is insertable in the first housing hole and comprises a second connection plate adapted to be fixed to said edge surface of said panel and wherein said mechanical armature is insertable in the second housing hole and comprises a second connection interface adapted to fix said mechanical armature to said frame, wherein said magnetic induction catch and said lock body have a shape and dimensions such as to allow their insertion in the first housing hole, wherein said magnetic induction armature and said mechanical armature (1 0b) have a shape and dimensions such as to allow their insertion in the second housing hole, wherein said first connection plate and said second connection plate have a shape and dimensions such as to allow the fixing thereof at the first housing hole, said first connection plate and said second connection plate being substantially identical, and wherein said first connection interface and said second connection interface have a shape and dimensions such as to allow the fixing thereof at the second housing hole, said first connection interface and said second connection interface being substantially identical.