The 8 place LWS Ultra variable speed centrifuge has a unique, space-saving triangle shape to fit easily into a corner. It accommodates most test tubes from 3ml to 15ml. It has an auto shut-off 30 minute timer and gives your lab proper separations without cell damage. It's ideal for blood, urine and other fluids. Includes a safety shut-off switch. The speed is from 0 to 3300RPM. Includes 8-place tube fixed-angle rotor, Eight 15mL tube sleeves and Eight 13 x 75mm tube sleeve inserts.