Article: After increasing the chair's height, sit on it carefully. Evaluate the chair's sturdiness—if it feels wobbly, adjust the chair's rising equipment until sitting on it feels secure. Be careful when sitting on the chair for the first time in case it slips or falls over. Lifting your chairs any higher can make your chair unstable. If you need seats more than 6 inches (15 cm) above their current heights, you may need to buy new chairs. Read the label or contact the manufacturer to find out the chair accessories' maximum weight limit. Factor in the chair's weight and the average weight of those sitting on it to determine which chair rising equipment is safest. To prevent injuries, do not exceed the equipment's maximum weight limit. Individuals that use the chair should be able to sit and stand easily. As a guideline, their feet should lie flat on the ground or footrest while sitting down. Compare these measurements to how the person who sits in this chair most looks while sitting in it. Adjust higher or lower as needed.  If many people use this chair, choose the average height as a guideline. Chairs that are too high can cause poor blood circulation, put strain on your knees, and constrict the nerves in your legs. If you move the chairs, check the equipment's fit on each of the chair's legs. Even small movements can change the equipment's alignment in dangerous ways.

What is a summary?
Check the chair's stability prior to use. Do not raise your chairs more than 6 inches (15 cm). Check the chair rising equipment's maximum weight limit. Make sure you've adjusted the chair legs to a comfortable height. Readjust the raising equipment as you move the chairs.