Blood Roller Mixer is an instrument used for gentle and efficient mixing of blood samples in tubes or containers. It consists of a roller system or rotating platform with adjustable speed and tilt angles. The blood samples are placed on the rollers, and as the platform rotates, the tubes gently roll, and hence facilitate thorough mixing of the blood components. Blood Roller Mixer ensures homogeneity of the sample without causing hemolysis or damage to the blood cells. This mixer is commonly used in blood banks, clinical laboratories, and research facilities for preparing blood samples for analysis, serological testing, and ensuring accurate results in hematology and immunology studies.