Abstract: A particular object of the invention is to provide a telescope-type capsule, e.g., for pharmaceutical use or the like, consisting of a cap and a body, the cap having four to six elongated, flat protrusions on its inner wall with a depth of from 30 to 100 .mu.m, preferably 50 to 80 .mu.m, and a length of 1.5 to 3 mm, and a narrowing positioned between the closed end and cylindrically shaped part of the capsule. The narrowing has an area with smaller inclination relative to the capsule axis and an area with stronger inclination which is disposed further away from the open end of the cap than the area with smaller inclination and has a width of 2 to 3 mm and an inclination of 0.03 to 0.07 mm/mm, preferably 0.04 to 0.06 mm/mm. A locking ring with a depth of from 30 to 160 .mu.m, preferably 140 to 120 .mu.m and a width of from 0.8 to 1.2 mm is provided on said narrowing. The body comprises likewise a locking ring, the counter locking ring, which matches the locking ring of the cap and has a depth of 25 to 70 .mu.