Concentric is your source for products that really work.  We personally test all of our products and refuse to sell anything that doesn’t meet out standards – which are extremely high.  For example, both owners of Concentric, Mark and Ginette, are avid golfers.  We have had ample opportunity to test both the hand warmers and the back heat packs - if you are a golfer, you will understand. 

These products are terrific for sore muscles.  (Especially, when you’re over-swinging – we didn’t say we were good golfers, just avid.)

Located in California for over 20 years, we have only been able to grow our business by running an ethical company with excellent customer service and products that work. Whether you simply need stay warm at an out-door sporting event or just need help “relaxing” those aching bones and muscles, we have a product that is right for you.

Our products are made in the U.S.A. and carry “Made in the U.S.A.” labeling.

When you need an on-demand, safe, effective, re-usable heat source that can truly be taken anywhere you need Quantum-Heat Packs from Concentric (www.webringtheheat.com) or call us at 1-909-596-6126.