The OM5-AT Active Tasker Chair/Stools is a 5-Star base simple "tasker" for training rooms, computer labs, or any basic task environments. The OM5-AT is more then a simple task chair. It offers comfort, style and durability! Enjoy the fit of the OM5 Active Tasker chairs. The chair back flex's allowing you to sit up or recline just slightly. A variety of options are available for height options making the Tasker a great choice for a variety of environments. The OM5 Active Tasker features “body-activated motion” inspired by a desire to create responsive ergonomic seating through precise engineering which responds automatically to changes in body position. The chair feaures a 300 lb rating and is available in 8 colors, along with a wide variety of seat and back upholstery. You can order your OM5 Active Tasker with or without arms and either with a Black or Polished base finish.