This is our best selling Weighted Massage Rollerz! This is our large size and heaviest weight.  HMR can be used to effectively roll the upper trapezius and neck area to reduce muscle tension that can cause headache pain. It’s great for the quadriceps (and other muscles)and can be used like a foam roller underneath the body giving you a more firm pressure than any other material. It is pictured to the left of the 3 pack picture, weighing 15 pounds. It measures 2.5" x 11.5".