Everything Yoga Foam Roller - 12 Inches Our small, 12" long PE Foam Roller is best used in situations where space is limited. They provide the same benefits as a longer PE Roller in a more compact size. Widely used in massage therapy, PE Rollers are also used in many Yoga and Pilates classes as a tool to strengthen core muscles, stretch deeply into postures, and to test balance. The foam exterior is soft to the touch, and the roller will stay firm, no matter how many times it is used. Each Foam Roller arrives individually wrapped.