By B15m1lah. Chair. At Tuesday, July 10th 2018, 00:19:11 AM.
Fleshing this out further, let's say a company advertises free shipping on their church chairs once a certain quantity of chairs are purchased to select geographical regions of the country. One of their chairs they sell for essentially $33.00 each, once there are a minimum of 100 chairs, purchased as a part of the order and also include "free shipping" for those chairs to about 20 different states. In this case they may purchase those chairs from a Chinese factory for about $13.00 a chair. They bring them to this country, warehouse them, sell them, and then deliver them. Their costs for all of these items is perhaps another $13.00 or so per chair. They then sell them for $33.00 a chair and all of their costs are covered and they make a nice profit. All through the process though they continue to state they are offering "free shipping".
Having the right back height for your office chair can be of particular importance for those who suffer from back pain and even for those who want to avoid back pain. A good way to determine the back height that will be needed for your chair is to look at your current office chair. If you currently suffer from upper back you will want to look for a chair that's back will come up high enough to support your shoulder blades. Have a friend measure your back in its entirety from the top of the seat on your current office chair up to your shoulder blades to calculate how tall you will need your back rest to be.
If you experience neck pain look for a chair that comes with an adjustable headrest. Again you will need to measure your back to ensure you do not pick a chair that has a back that is too high or too low, otherwise your headrest may end up turning out to be detrimental rather than helpful. Many people suffer from lower back pain from having a chair that does not have proper lumbar support which is why it is crucial to find a chair that offers built-in lumbar support, adjustable lumbar support, or air lumbar support to prevent lower back pain.