The clip is formed of resilient plastic material and includes first and second parts pivotally connected by a connecting member. Each of the parts includes a gripping portion and a locking portion. Each of the gripping portions includes first and second connected portions, at least one of which has a gripping surface. A locking part is pivotally mounted to one of the locking portions for movement relative to the other locking portion between locked and unlocked positions. The locking part is adapted to engage the other of the locking portions in the locking position. Movement of the locking part toward the locked position causes the gripping surfaces to move toward each other to retain the article therebetween.