Vintage pyjama girdle.  Probably made in the 1950s/1960s or thereabouts.  Marked ART 0080 CC.

One inch wide approx.  I do not know the length because it is sealed inside the packet.  
 
Condition: Vintage item, still in original packet.  The packet is damaged, and the belt has some storage spots in places - this should improve if it is washed carefully.