A grommet, comprising: an axis body; and a main body including a head portion, and a leg portion which is spread by an elastic deformation by the axis body pushed in from a head portion side thereof, wherein the leg portion of the main body is split into two or more parts, and includes a temporary attaching device which temporarily attaches the axis body and the main body at a position before pushing-in of the leg portion wherein one portion of the axis body is housed inside the main body, and the temporary attaching device is a latch-engaging portion formed at the axis body, and latched and engaged relative to a latch-engaged portion formed in a portion positioned between adjacent parts of the leg portion inside the head portion of the main body, and the axis body includes a first abutting portion abutting against an abutted portion of the leg portion by the pushing-in, characterized in that a second abutting portion positioned on a push-in backward side relative to the first abutting portion, it is configured such that after the part of the leg portion is spread by the first abutting portion, the axis body is pushed in further, so that another part of the leg portion is spread, and the latch-engaging portion, which becomes the temporary attaching device, is provided in a portion between a lateral face portion wherein the first abutting portion is positioned, and a lateral face portion wherein the second abutting portion is positioned, in a direction around an axis line of the axis body, wherein when the axis body is pushed in up to a position of abutting the first abutting portion against the abutted portion, only one portion of the leg portion is spread by the elastic deformation, and when the axis body is pushed in up to a position of abutting the second abutting portion against the abutted portion the other one portion of the leg portion is spread by the elastic deformation. an axis body; and a main body including a head portion, and a leg portion which is spread by an elastic deformation by the axis body pushed in from a head portion side thereof, wherein the leg portion of the main body is split into two or more parts, and includes a temporary attaching device which temporarily attaches the axis body and the main body at a position before pushing-in of the leg portion wherein one portion of the axis body is housed inside the main body, and the temporary attaching device is a latch-engaging portion formed at the axis body, and latched and engaged relative to a latch-engaged portion formed in a portion positioned between adjacent parts of the leg portion inside the head portion of the main body, and the axis body includes a first abutting portion abutting against an abutted portion of the leg portion by the pushing-in, characterized in that a second abutting portion positioned on a push-in backward side relative to the first abutting portion, it is configured such that after the part of the leg portion is spread by the first abutting portion, the axis body is pushed in further, so that another part of the leg portion is spread, and the latch-engaging portion, which becomes the temporary attaching device, is provided in a portion between a lateral face portion wherein the first abutting portion is positioned, and a lateral face portion wherein the second abutting portion is positioned, in a direction around an axis line of the axis body, wherein when the axis body is pushed in up to a position of abutting the first abutting portion against the abutted portion, only one portion of the leg portion is spread by the elastic deformation, and when the axis body is pushed in up to a position of abutting the second abutting portion against the abutted portion the other one portion of the leg portion is spread by the elastic deformation.