Instead of having two separate poles connected by ropes or cables, one pole slides inside the other which allows for quick installation and adjustment. It's always best to shop around before making any decisions – don’t just settle for the first person who gives ya' an estimate! Furthermore, make sure whoever installs your flagpole follows all local building codes and regulations; otherwise, you may end up paying extra fines later on. However, they can be prone to wear and tear if not taken care of properly. (Here's) some tips for maintaining your extendable flag pole:First and foremost, keep your pole clean! This means regularly dusting the pole with a soft cloth, washing it with mild soap and water, and rinsing off any dirt or debris that may have accumulated.