SAFETY INSTRUCTIONS ! WARNING Because of the function of the chair, it must be used with caution to prevent falls and injuries. Please follow the basic safety and maintenance instructions listed here may cause product damage or injuries. 1.Children should not be left unsupervised sitting on or near chairs. 2.Periodically inspect your chair and tighten all screws, nuts and bolts. 3.Do not stand on chair. 4.Do not touch the side of the frame on both sides.