A clip for attachment of a floor carpet, comprising: a male member having a lower flange portion, and a shaft portion projecting from an upper surface of the lower flange portion, and a female member having a cylindrical portion to which the shaft portion is inserted, and an upper flange portion projecting around an outer periphery of the cylindrical portion, wherein the clip is configured to be attached to the floor carpet and held between the lower flange portion and the upper flange portion by inserting the shaft portion to an insertion hole formed in the floor carpet from a hole lower side to a hole upper side and engaging the shaft portion penetrating through the insertion hole with the cylindrical portion so that an article mounted on an upper surface of the floor carpet is fixed by the cylindrical portion of the male member, the female member includes an engaging portion (26, 27) at an inner periphery of the cylindrical portion, the male member includes a hole portion penetrating through the lower flange portion and the cylindrical portion in an axial direction, engaging projections formed around an outer periphery of the shaft portion to project therefrom, and a regulation member to be inserted into the hole portion, said regulation member, in case the male member is inserted into the female member to engage the engaging projections with the engaging portion (26, 27) and the regulation member is inserted into the hole portion, preventing the engaging projections from being disengaged from the engaging portion (26, 27), wherein the regulation member has a plate shape with about a rectangular shape which can be inserted into the hole portion, and includes claws formed to project at an outer surface and an inner upper side of an inner face facing the outer surface said clip being characterized in that the regulation member further has extending portions projecting on two upper sides and provided to increase a projecting amount as it goes upward from a lower side, and an inclined portion. a male member having a lower flange portion, and a shaft portion projecting from an upper surface of the lower flange portion, and a female member having a cylindrical portion to which the shaft portion is inserted, and an upper flange portion projecting around an outer periphery of the cylindrical portion, wherein the clip is configured to be attached to the floor carpet and held between the lower flange portion and the upper flange portion by inserting the shaft portion to an insertion hole formed in the floor carpet from a hole lower side to a hole upper side and engaging the shaft portion penetrating through the insertion hole with the cylindrical portion so that an article mounted on an upper surface of the floor carpet is fixed by the cylindrical portion of the male member, the female member includes an engaging portion (26, 27) at an inner periphery of the cylindrical portion, the male member includes a hole portion penetrating through the lower flange portion and the cylindrical portion in an axial direction, engaging projections formed around an outer periphery of the shaft portion to project therefrom, and a regulation member to be inserted into the hole portion, said regulation member, in case the male member is inserted into the female member to engage the engaging projections with the engaging portion (26, 27) and the regulation member is inserted into the hole portion, preventing the engaging projections from being disengaged from the engaging portion (26, 27), wherein the regulation member has a plate shape with about a rectangular shape which can be inserted into the hole portion, and includes claws formed to project at an outer surface and an inner upper side of an inner face facing the outer surface said clip being characterized in that the regulation member further has extending portions projecting on two upper sides and provided to increase a projecting amount as it goes upward from a lower side, and an inclined portion.