Abstract: A device (10) and a method for dispensing fibres into concrete or similar material comprises a container (11) with an essential cylindrical shape. The container (11) has a bottom (13), an inner side (14) having a height (15) and a spiral path (12) arranged to the inner side (14). A first end of the spiral path (12) is arranged close to the bottom (13). The spiral path (12) has a width (18) that increases with the height (15) from the bottom (13) to the top of the container (11). The angle of inclination for the spiral path (12) decreases with the height (15) from the bottom (13) to the top of the container (11). The method comprises supplying the fibres into the container (11), vibrating the container (11) for feeding the fibres along the spiral path (12) and feeding the fibres continuously from the device (10) to the concrete.