Contour Worker Tool Kit, Compatible Pipe Diameter (Maximum) 18 in, Compatible Pipe Diameter (Minimum) 1 1/2 in, Includes 8 Pro-Mag Level, Lockable Metal Carrying Case, No1 Curv-O-Mark Marker, No7 Centering Head, Square Soap Stone and Holder, Standard Radius Marker, Features Safety Contour Layout Kit Comes Pre-Assembled, For Use On Pipe Marking and Layouts, Tool Material Metal, Tool Type Contour Layout Kit