member a preferably has an extending contracting property to control damaging of the member a caused when labels are set on the member a it is preferable that the member a is made of a polyethylene terephthalate and has a thickness of from 10 to 200 u03bcm so as not to be damaged when stretch labels are set on the member a in the stretch label attaching device of the present invention the member b preferably has an elasticity larger than that of the member a to control damaging of the member a caused when stretch labels are set on the member a it is preferable that when a good on which a stretch label is to be attached is inserted into the members c and a so that the bottom of the good is level with the bottom of the member c i e the bottom of the stretch label attaching device the stretch label occupies a predetermined attaching position i e the top of the stretch label is level with the top of the predetermined attaching position of the label namely as illustrated in fig1 the height l of the combination of the members b and c is preferably adjusted such that when a good on which a stretch label is to be attached is inserted to the stretch label attaching device so that the bottom of the good is level with the bottom of the member c the top of the stretch label has a position level with a top p of the predetermined attaching position of the stretch label the outer surface of the member a preferably has a slipping property higher than that of the inner surface of the stretch label to.