The 35-pound beams lock together to make a rigid base for the tower. The legs on the corners of the base adjust up and down over a 5-foot range to make up for uneven floor levels. The new, patented, Light Bulb Scaffoldâ¢ System is the solution to all your access problems.
Acid reflux is the most common cause of chronic laryngitis. But chronic laryngitis may be caused by more severe problems such as nerve damage, sores, polyps, cancer, or hard and thick lumps (nodules) on your vocal cords. The vocal cords are the vibrating elastic bands inside the larynx that produce your voice.
1 Infections: The most common cause of laryngitis is a viral infection. 2  Infections from bacteria or fungi may also cause laryngitis. 3  Irritation: Things in the air that you breath in may irritate your larynx, such as chemicals and pollen. 4  Other conditions: These include vocal cord paralysis and tumors in the larynx.