Lumbar supports for office chairs ensure that the user is properly supported while working, and provide additional contouring around the lower back. This is an especially important feature for those with back problems. Adjustable armrests Adjustable armrests for office chairs are vital to ensure that you and your employees are seated comfortably whilst working. They can be moved up or down to provide important support to the forearms, which reduces the risk of injury or strain. Seat Height Adjustment Seat height adjustment for office chairs enables the user to raise or lower the seat to suit personal levels of comfort. This reduces pressure under the thighs, promoting a less restricted flow of blood to the legs. Forward Seat Angle The forward seat angle function for office chairs allows the chair to be tilted forward, thus changing the angle of the thighs in relation to the floor. This helps reduce pressure on the back and can prevent related straining and injuries. Synchro Tilt Synchro tilt for office chairs enables the back-rest to recline at a faster rate than the seat, which increases the angle between your torso and thighs. This helps to increase comfort and encourage dynamic body movement. Swivel The swivel office chair is one of the more popular models available, as it enables the user to easily move around their workspace, turning easily without causing undue strain or stress on the body. Polished Base Polished bases for office chairs create a truly high-end, professional appearance for the workplace, and can be either a star or spider base format. They're a vital feature for businesses who want to make a good impression on their clients.