An endoscope sheath comprises: a first tubular member which has a longitudinal axis direction through hole; a stopper member which has a holding hole for holding the first tubular member for advance and retraction and a recess which forms an opening in a direction orthogonal to the axis of the holding hole; an abutment member which is fixed to one end side of the first tubular member and has an abutment face that abuts one end face of the stopper member; a second tubular member which includes a longitudinal axis direction through hole in which the abutment member and stopper member can be slidably disposed, a locking part which is capable of locking onto an operational part, a moving range setting hole which is a long hole that communicates with the longitudinal axis direction through hole and which sets a longitudinal direction moving range of the abutment member, and a positioning hole which is alignably formed with respect to the recess of the stopper member; a positioning fixing member which is disposed on the recess of the stopper member via the positioning hole of the second tubular member and which positions and fixes the stopper member with respect to second tubular member; and a knob which is fixed on the abutment member via the moving range setting hole that is provided in the second tubular member.L'invention concerne une gaine d'endoscope comprenant : un premier élément tubulaire qui comporte un trou traversant dans le sens de l'axe longitudinal ; un élément d'arrêt qui comporte un trou de retenue afin d'empêcher le premier élément tubulaire d'avancer et de se rétracter, et un évidement qui forme une ouverture dans un sens orthogonal à l'axe du trou de retenue ; un élément d'aboutement qui est fixé à une extrémité du premier élément tubulaire et comporte une face d'aboutement qui s'assemble en about à une face d'extrémité de l'élément d'arrêt ; un second élément tubulaire qui comprend un trou traversant dans le sens de l'axe longitudinal dans lequel peuv