No Plunger/Tamper Required, Made in the USA</br>Durable BPA-free Tritan Copolyester</br>Designed for Wet and Dry blending</br>4" stainless steel blade, NSF Certified</br>FOR VITAMIX BLENDERS ONLY - WILL NOT FIT ON BLENDTEC BLENDERS</br></br>Product Description</br></br>The XR Jar was designed with safety in mind. It directly fits most Vitamix blenders and features all the benefits of our famous WildSide+ jar, including a patented, unbreakable blade. It is the safest blending jar in the world.</br><br/>http://www.amazon.com/gp/product/B00A3GCH0M