Warning:
These cylinders fit many office chairs and drafting stools with a standard 17-4 top taper and 50 mm column. However, this does not mean that a chair modified using these components will be safe. For example, if you use a tall cylinder to convert a conventional office chair into a drafting stool, the added height may make the chair easy to tip over unless the chair base is replaced with a larger one. In addition, the torque forces on the cylinder and forces transferred to other chair components are different depending upon seat & backrest size and seat/back tilt adjustment. If your chair design differs from the design of the chair for which this cylinder is designed, mechanical failure and user injury could result.
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