form a fabric bolt the blank is easily and entirely set up by simple folding procedures application_number US 622108 A description turning to the drawings and particularly fig1 3 thereof a bolt 10 of web like material 12 is shown as wound upon a supporting mandrel 14 of the present invention the web like material generally comprises cloth or other relatively expensive materials that are shipped from the supplier thereof to users thereof and these mandrel supported bolts facilitate the process by protecting the cloth etc during shipping and enable the material to be better handled by the users both for storage and facilitating unwinding desired lengths thereof the mandrel 14 shown in an assembled or set up form in fig1 and 2 is formed from a blank 16 depicted in fig3 such blank 16 is flat and generally formed from corrugated cardboard material by standard forming processes including cutting perforating and crushing such material although corrugated cardboard is the most commonly chosen material for the instant use due to availability and cost other materials such as cardboard heavy paper stock plastic resinous sheet and foam with or without paper coverings and other related materials can be utilized provided the mandrels once processed into blanks can be folded broken apart and support hinged elements that are bent into placed as required by the instant invention the blank 16 is of flat elongated overall configuration and includes a main panel 20 having upper 22 and lower 24 opposed ends terminating in upper and lower edges 26 28.