Wow, it just what I can say about this product.  This has really improved my posture while sitting for long hours.  This is not just so comfortable but it also heats up, which really helps with muscles.  This fit perfectly on your bottom, it is nicely cushioned with support.  Has a a cable that plugs into a USB slot, which can be a plug, your computer, laptop, portable chargers, so it is easily moved around.  The heat is nice not too hot or too warm, it is perfect.  It has a zipper so your able to remove th cover and wash when needed.  It is very soft to the touch, very nice material.  If you have any back problems. posture, or sit for long periods this will really help you.  I use it daily, what a great product.

https://www.amazon.com/gp/product/B01G5FOGSA/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

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#heatcushion