Category C buffer which meets the requirements of the EN 15551 standard and the UIC 526-1 leaflet, as well as the related leaflets, equipped with a set of elastomer shock absorbers: the preliminary absorber with solid elastomer components and the main absorber based on the free-flowing elastomer technology. Both shock absorbers have proved their infallibility and functional reliability during many years of operation. The buffer casing is manufactured in a unique process of hot extrusion. The buffer has good working parameters and operational reliability within the temperature range from -40°C to +50°C. The buffer can be delivered with disks of the width of 450 or 550 with standard hardness. The product has the EBA and TSI certificates.