Anti-vibration dampers (10, 50, 60) which can be inserted into a coil spring (20) and extend in the axial direction are provided with elastic bodies (14a, 14b, 64a, 64b) having a conical outer circumferential surface, and ribs (16a, 16b, 16c, 16d, 16e, 16f, 56a, 56b, 56c, 56d, 56e, 56f) which protrude outward from the outer circumferential surface of the elastic bodies and can be brought into contact with pressure with an inner circumferential section of the coil spring when the elastic bodies are inserted into the inner circumferential section of the coil spring.