RAD Helix Massage Tool. Take your personal recovery regimen to new heights with the RAD Helix the only roller inspired by DNA. The RAD Helix's arched design replicates a double helix, the building blocks of the body, and it puts traditional foam rollers to shame. The two cone shaped ends provide release in two different planes extending AND opening your spine while the ridges offer waves of pressure to flush waste materials out of your muscles. Then of course there's the dip in the middle, which lets you roll hard on your erectors without putting any pressure on your spinous process all those little, boney bumps that poke out at the center of your back. Daily exercise and just plain old, day to day living put a lot of stress on your back and body. As a result, waste products and toxins build up in and reduce your range of motion. The RAD Helix is constructed to make powerful contact with your body pumping out toxins and leaving nothing but loose, limber muscles behind. Use it daily to keep your back and body at peak performance. The RAD Helix is made of a specially designed polymer that's soft enough for whole muscle rolling, yet strong for heavy duty use. That means you can effectively free up the tension in your back, which will then invite the rest of your body follow. Additionally, the unique polymer material is waterproof, sweatproof, and non porous so it doesn't get all wet and stinky like typical foam rollers.