Abstract: A clip may be configured to be coupled to an attachment portion formed in an attaching component and configured to be inserted into an attaching hole formed in a panel. The clip may include a closed front end, an open rear end, an engagement member extended from the front end of the clip toward the rear end of the clip and having a proximal end portion corresponding to the front end of the clip and a distal end portion corresponding to the rear end of the clip, and a retainer members formed in the engagement member and configured to be secured to the attachment portion of the component. The engagement member includes a main portion having an outwardly bulged portion, a transition portion obliquely extended inwardly from the outwardly bulged portion of the main portion, and an arm portion extended from the transition portion.