A method for implanting a penile prosthetic insert in a corpora cavernosum of a penis and engaging a first magnetic unit with an inflatable penile prosthetic cylinder. The method includes locating a second magnetic unit outside the penis and attracting the first magnetic unit through tissue of the penis with the second magnetic unit to effect moving of the first magnetic unit and the inflatable penile prosthetic cylinder inside the corpora cavernosum. Also disclosed is a kit of parts for implanting a penile prosthetic insert in a corpora cavernosum of a penis including a first magnetic unit and a second magnetic unit for delivering an inflatable penile prosthetic cylinder into the corpora cavernosum of the penis.