Abstract: A trolley comprising a wire basket supported by a base frame for carrying merchandise in self-service stores and the like. The front end of the trolley is capable of engaging within the rear end beneath the carrier basket of a similar trolley located in front. At the time of interengagement of the two trolleys, an inclined ramp carried by a flat bar separately mounted on each side of the base frame comes into contact with a horizontal cross-member of the front trolley, the wheels of which are thus lifted off the ground. Each trolley-lifting ramp is preferably constituted by a metallic strip having a forwardly-sloping portion, a central ridge and a backwardly-sloping portion. After interengagement to two trolleys, the uplifted cross-member of the front trolley is located beyond the ridge, thus coupling the two trolleys together.