A mandrel for transporting a hollow cylinder comprising an elongated arm, a dish shaped disk adjacent one end of said elongated arm, said dish shaped disk having a flexible lip flared inclined away from said elongated arm, said flexible lip having a circular outermost edge, a substantially rigid dish shaped member mounted between said dish shaped disk and said end of said elongated arm, said dish shaped member comprising a substantially planar circular base encircled by a flared skirt extending outwardly from and inclined away from the plane of said base and away from said elongated arm, said skirt having a circular outermost edge, said dish shaped disk having said flared flexible lip contacting the side of said dish shaped member opposite said elongated arm, said circular outermost edge of said flared flexible lip extending beyond the extremities of said circular outermost edge of said skirt, and a reciprocable presser means adapted to partially flatten at least a portion of said flexible lip adjacent to and including said outermost edge of said lip toward said elongated arm to increase the length of the circumference of said circular outermost edge of said flexible lip.