Abstract: The present invention relates to a flexible sheath which may be opened longitudinally and used for the transfer of casings to a stuffing canula comprised of one or a plurality of flexible bands (1) having a generally oblong shape, the two opposite longitudinal sides of which are rectilinear and each have a projecting rib (2) or a hollow groove (3), forming the male and female complementary elements of a longitudinal press closure (4), capable of being opened and closed a plurality of times, and method for placing casings used in pork-butchery on the stuffing canula (6) for the fabrication of sausages or dried sausages.