Cosmetic device for a liquid cosmetic comprising - a longitudinal axis, - a container defining a containment volume of said cosmetic liquid, an access mouth to said containment volume; wherein said container comprises a connection neck; - an applicator suitable to withdraw at least part of said cosmetic liquid from said containment volume; - a rod having a perpendicular cross-section with non-circular edge and one end integral with said applicator; - a cap constrained to said rod from the side opposite said applicator and suitable to engage in said container closing said access mouth and placing said applicator and at least part of said rod in said containment volume; - said constraint of said cap and said container resulting in a mutual rotation of said cap and said container along said longitudinal axis, - connection means suitable to connect said cap to said container via a mutual rotation of said cap and said container; - a scraper connected to said container at said access mouth; - said scraper comprises: - a mobile portion housed in said connection neck and defining a sliding opening counter-shaped to said perpendicular cross-section of said rod, said mobile portion being rotationally connected to said rod along said longitudinal axis, - a fixed portion integral with said container and suitable to block the translation of said mobile portion in at least one direction along said longitudinal axis, - and in that said connection neck comprises internally a cylindrical surface, integral with the container, - said mobile portion and said fixed portion being entirely arranged in said cylindrical surface, so as to be able to rotate in a cylindrical housing, characterized in that said connection neck comprises an abutment suitable to block the translation of said mobile portion along said longitudinal direction in the opposite direction to said fixed portion. - a longitudinal axis, - a container defining a containment volume of said cosmetic liquid, an access mouth to said containment volume; wherein said container comprises a connection neck; - an applicator suitable to withdraw at least part of said cosmetic liquid from said containment volume; - a rod having a perpendicular cross-section with non-circular edge and one end integral with said applicator; - a cap constrained to said rod from the side opposite said applicator and suitable to engage in said container closing said access mouth and placing said applicator and at least part of said rod in said containment volume; - said constraint of said cap and said container resulting in a mutual rotation of said cap and said container along said longitudinal axis, - connection means suitable to connect said cap to said container via a mutual rotation of said cap and said container; - a scraper connected to said container at said access mouth; - said scraper comprises: - a mobile portion housed in said connection neck and defining a sliding opening counter-shaped to said perpendicular cross-section of said rod, said mobile portion being rotationally connected to said rod along said longitudinal axis, - a fixed portion integral with said container and suitable to block the translation of said mobile portion in at least one direction along said longitudinal axis, - a mobile portion housed in said connection neck and defining a sliding opening counter-shaped to said perpendicular cross-section of said rod, said mobile portion being rotationally connected to said rod along said longitudinal axis, - a fixed portion integral with said container and suitable to block the translation of said mobile portion in at least one direction along said longitudinal axis, - and in that said connection neck comprises internally a cylindrical surface, integral with the container, - said mobile portion and said fixed portion being entirely arranged in said cylindrical surface, so as to be able to rotate in a cylindrical housing, characterized in that said connection neck comprises an abutment suitable to block the translation of said mobile portion along said longitudinal direction in the opposite direction to said fixed portion.