Come and Check Our Branding Solutions.The Medium density muscle roller is comfortable to use making it easy for beginners,but still effective at penetrating the soft tissue layer of tired muscles,Soft enough to use while in pain from lower back injury,sciatica or plantar fasciitis.13inches x5.2 inch diameter,lightweight yet rugged solid core massage roller with EVA tread and triple grid 3D massage zones mimics the finger,palm,and thumb of a therapist's hands,we also have different size and shapes of rollers for you to choose,Whether you are a beginner or a senior fitness trainer,you can find the right baby here.If you need different rollers,please email us for details. Pls check inventory and detailed info before placing your orders.