When it comes to EVA Foam Rollers, these are the top-of-the-line! Each foam roller is crafted out of premium-grade, closed-cell EVA foam that is heat-sealed for maximum life of the product. This means that no longer do you need to worry about your foam roller picking up unwanted scents or growing harmful bacteria. The high-quality design of this roller ensures that it will maintain its shape and density even after heavy-duty use. Size 12".