A rigid container (1 ), made by folding a sheet material, comprises a first and a second end (2, 3) and comprises a front face wall (4), a rear face wall (6), a first and a second lateral wall (5, 7); the front face wall (4) and the rear face wall (6) converging at the first end (2) and the first and second lateral walls (5, 7) diverging at the first end (2).