This economical 8-place centrifuge accommodates most test tubes from 3ml-15ml. The wide stance eliminates wobble, while the suction-cupped feet prevent slipping. Available in 3300 RPM Fixed speed model or variable speed. Optional Portafuge model features a 12V car adapter. Features include a 110V maintenance free brushless motor, auto-off 30 minute timer, blue LED power indicator light, and one year warranty. Dimensions: 10" x 10" x 10". Wt: 11 lbs.