To preserve the decorative effects by using decorations repeatedly.

A second and third sleeve 4. 7 matching the inner surface configurations of a first and second sleeve 1, 4 are fitted in order freely telescoplcally in opening parts of the first and second sleeve 1, 4, and a plurality of sleeves 1, 4, 7 are superimposed one another, then, an insertion part 11 of decorations is set on the third sleeve 7 and one surface of each pressure sensitive adhesive double coated tape 3, 6, 12 is adhered to the rear wall outer surface of each sleeve 1, 4, 7, and further each release paper 3a, 6a, 12a is adhered to the other surface of the pressure sensitive adhesive double coated tape 3, 6, 12.