A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus and being rotated about a center axis of the toner container integrally with the rotation transfer member. The toner container is structured with a cylindrical body having a toner outlet on one end of the cylindrical body, nearby a center axis of the cylindrical body, a convex spiral flute formed on the inner periphery of the cylindrical body, and a concave spiral flute formed on the outer periphery of the cylindrical body, wherein a ratio L/D of length L to diameter D of the cylindrical body is in a range of 1/2.ltoreq.L/D.ltoreq.10, a thickness of the cylindrical body t is 0.3 mm.ltoreq.t.ltoreq.5.0 mm; and a thickness deviation of the cylindrical body is .DELTA.t.ltoreq.20%.