A device for dispensing at least one food item to animals comprising: - an inner hollow sleeve having: • an inner surface, which delimits a storage volume, configured to receive at least one food item, • an outer surface, which defines a first side wall having a first plurality of open-ended holes in the storage volume, - an outer hollow sleeve having: • an inner surface, • an outer surface, which defines a second side wall having a second plurality of holes, wherein the inner sleeve extends along a longitudinal axis within the outer sleeve so as to be coaxial to the outer sleeve, and wherein the outer sleeve and the inner sleeve have a relative mobility configured to define a variable overlap surface of the second plurality of holes over the first plurality of holes, wherein the variation of said overlap surface generates a variable passage surface between the storage volume and the outside of the device, wherein the relative mobility comprises a translation along the longitudinal axis, the device comprising an additional hollow sleeve, extending along the longitudinal axis and having an inner surface and an outer surface, said outer surface defining a third sidewall having a third plurality of holes, and wherein the additional sleeve is rotatably movable relative to at least one of the inner sleeve and the outer sleeve so as to vary an overlap surface of the third plurality of holes over first plurality of holes and/or the second plurality of holes, the device being characterised in that: - the inner sleeve extends along the longitudinal axis within the additional sleeve so as to be coaxial to the additional sleeve, - the additional sleeve extends along the longitudinal axis within the outer sleeve so as to be coaxial to the outer sleeve so that the arrangement order of the sleeves (11, 12, 13) starting from the storage volume to the outside of the device is as follows: inner sleeve, additional sleeve and outer sleeve, the device further having a translation locking element in at least two different relative positions of the inner sleeve and the outer sleeve. - an inner hollow sleeve having: • an inner surface, which delimits a storage volume, configured to receive at least one food item, • an outer surface, which defines a first side wall having a first plurality of open-ended holes in the storage volume, • an inner surface, which delimits a storage volume, configured to receive at least one food item, • an outer surface, which defines a first side wall having a first plurality of open-ended holes in the storage volume, - an outer hollow sleeve having: • an inner surface, • an outer surface, which defines a second side wall having a second plurality of holes, • an inner surface, • an outer surface, which defines a second side wall having a second plurality of holes, wherein the inner sleeve extends along a longitudinal axis within the outer sleeve so as to be coaxial to the outer sleeve, and wherein the outer sleeve and the inner sleeve have a relative mobility configured to define a variable overlap surface of the second plurality of holes over the first plurality of holes, wherein the variation of said overlap surface generates a variable passage surface between the storage volume and the outside of the device, wherein the relative mobility comprises a translation along the longitudinal axis, the device comprising an additional hollow sleeve, extending along the longitudinal axis and having an inner surface and an outer surface, said outer surface defining a third sidewall having a third plurality of holes, and wherein the additional sleeve is rotatably movable relative to at least one of the inner sleeve and the outer sleeve so as to vary an overlap surface of the third plurality of holes over first plurality of holes and/or the second plurality of holes, the device being characterised in that: - the inner sleeve extends along the longitudinal axis within the additional sleeve so as to be coaxial to the additional sleeve, - the additional sleeve extends along the longitudinal axis within the outer sleeve so as to be coaxial to the outer sleeve so that the arrangement order of the sleeves (11, 12, 13) starting from the storage volume to the outside of the device is as follows: inner sleeve, additional sleeve and outer sleeve, - the inner sleeve extends along the longitudinal axis within the additional sleeve so as to be coaxial to the additional sleeve, - the additional sleeve extends along the longitudinal axis within the outer sleeve so as to be coaxial to the outer sleeve so that the arrangement order of the sleeves (11, 12, 13) starting from the storage volume to the outside of the device is as follows: inner sleeve, additional sleeve and outer sleeve, the device further having a translation locking element in at least two different relative positions of the inner sleeve and the outer sleeve.