Abstract: An upright stop member having a container contact surface on at least one of its opposed side walls for holding containers in place on a refrigerator shelf. The stop member may be removably secured in place between a pair of spaced apart, parallel rods of a refrigerator shelf by means of a pair of aligned recesses on the opposed side walls of the stop member which are laterally spaced apart a predetermined distance so as to receive a pair of refrigerator shelf rods in snug, frictional engagement therewith. Lowermost side wall segments of the stop member side walls extend below the aforesaid recesses and are spaced apart by a predetermined width greater than the lateral spacing between the recesses and between the adjacent rods of a refrigerator shelf. With the stop member in place, the lowermost side wall segments will extend downwardly below the pair of refrigerator shelf rods with which the stop member is engaged and be retained below the rods to assist in holding the stop member in place.