The sachet (1) has plastic walls (10, 11) placed side by side to delimit a substance receiving pouch (P). A pipe (15) communicates with the pouch for filling the pouch. A pair of openings (3, 4) is placed on both sides of the pipe for suspending the sachet at complementary fingers of a support device. The opening (4) is in oblong shape, and extends perpendicular to the pipe, where the opening (4) comprises zones forming a hard point.
