The IEC Centra-7 Centrifuge features RPM x 1000 adjustment and needle RPM indicator, Timer 0-50 min., Brake 1-9, Run indicator light, Stop/open cover indicator light. 4-buckets. The buckets are labeled 9/80 Cat No. 378 -527.0 GMS. The vial holders are labeled 135.5 GMS and 105.5 GMS: Holds vials that are 3cm diameter and 9cm deep Holds vials that are 13mm diameter and 4.5cm deep