A racket comprising: a frame on which strings are extended in a longitudinal direction and a lateral direction, and a grommet (25, 26, 27, 28), which is mounted on the frame of the racket, including a plurality of cylindrical parts, each of which is mounted in a corresponding hole formed in the frame thereof, and each of which is configured to pass a corresponding string out of the strings therethrough, wherein the strings are extended in a tensioned state on the frame and deflected at an end side of the cylindrical part as a deflection position, each of the plurality of cylindrical parts includes a first formation section located on a deflection-position side with reference to a central axis position (Cb) of an outer peripheral face of the cylindrical part and a second formation section located on an opposite side of the central axis position (Cb) from the first formation section, the first formation section has a thickness which is greater than that of the second formation section in a radial direction of the cylindrical part, the grommet (25, 26, 27, 28) further includes a band-like part that couples the plurality of cylindrical parts and extends in a certain direction, positions at which the first and second formation sections (35, 36) of the plurality of cylindrical parts are formed are different in an alternating pattern in a direction in which the band-like part extends, each of the plurality of cylindrical parts, when viewed in a direction in which a central axis (Cb) thereof extends, includes a circular inner edge and a circular outer edge, and a central axis position (Cc) of the circular inner edge is positioned on an opposite side of the central axis position (Cb) of the circular outer edge from the deflection position, so as to form the first and second formation sections (35, 36), wherein each of the strings is extended in such a way that, a string is deflected on a base section of a cylindrical part, is inserted from a base section of the cylindrical part toward a leading-end thereof and is extended in a stringing direction, the string having been extended in the stringing direction is inserted from a leading-end of another cylindrical part toward a base section thereof and is deflected on the base section thereof, and wherein the first formation section is formed on the side of the deflection position of the base section of the respective cylindrical parts. a frame on which strings are extended in a longitudinal direction and a lateral direction, and a grommet (25, 26, 27, 28), which is mounted on the frame of the racket, including a plurality of cylindrical parts, each of which is mounted in a corresponding hole formed in the frame thereof, and each of which is configured to pass a corresponding string out of the strings therethrough, wherein the strings are extended in a tensioned state on the frame and deflected at an end side of the cylindrical part as a deflection position, each of the plurality of cylindrical parts includes a first formation section located on a deflection-position side with reference to a central axis position (Cb) of an outer peripheral face of the cylindrical part and a second formation section located on an opposite side of the central axis position (Cb) from the first formation section, the first formation section has a thickness which is greater than that of the second formation section in a radial direction of the cylindrical part, the grommet (25, 26, 27, 28) further includes a band-like part that couples the plurality of cylindrical parts and extends in a certain direction, positions at which the first and second formation sections (35, 36) of the plurality of cylindrical parts are formed are different in an alternating pattern in a direction in which the band-like part extends, each of the plurality of cylindrical parts, when viewed in a direction in which a central axis (Cb) thereof extends, includes a circular inner edge and a circular outer edge, and a central axis position (Cc) of the circular inner edge is positioned on an opposite side of the central axis position (Cb) of the circular outer edge from the deflection position, so as to form the first and second formation sections (35, 36), wherein each of the strings is extended in such a way that, a string is deflected on a base section of a cylindrical part, is inserted from a base section of the cylindrical part toward a leading-end thereof and is extended in a stringing direction, the string having been extended in the stringing direction is inserted from a leading-end of another cylindrical part toward a base section thereof and is deflected on the base section thereof, and wherein the first formation section is formed on the side of the deflection position of the base section of the respective cylindrical parts.