Wizard Wrap is made from a non-asbestos, heat resistant material. It is a high density product for heavy duty service at temperatures up to 360 degrees F. It has outstanding resistance to oil, gasoline, kerosene, water, sea water. Its thick edge promotes easier and more accurate marking and helps keep the soapstone from slipping. * 48" tape measure printed on the New Extra Large Wrap * 36" tape measure printed on the medium and large Wizard Wraps * 28" tape measure printed on the small Wizard Wrap. This limits the need for an extra tape measure and makes mark-up easier. * "Circumference & Quartering" scale printed on every small, medium, large & Extra Large Wizard Wrap. This limits the need for calculations because the exact cicumference, 1/4, 1/2 and 3/4 of the circumference, plus the actual pipe diameter for 2" through 30" pipe is printed on the outside of the Wizard Wrap. * Packaged in a durable, reusable container that will hold up in your tool box.