Blendtec 40-621-55 849369002344 Blender Jar, 28 fl Ounces, Red Blendtec products are built to the highest commercial standards. No tamper/plunger needed. Commercial-grade jar is compatible with all Blendtec blender models (not compatible with Blendtec Mix n' Blend models). The Twister jar is loved by so many but has a larger capacity that isnt always needed. The Mini Twister jar was born as demand for a smaller jar grew. It has all the same features as the WildSide+ jar, just in a smaller version. Twister jar is designed to blend your thickest recipes, such as nut butters, hummus, baby food, dips, thick shakes, dressings and more. The blunt safety blade is 80% thicker and ten times stronger than other blades. Includes: Patented Twister lid, and Spectacula spatula. Patented Twister Lid features tines that rotate and push ingredients off the side and into the blending vortex. No more stopping and scraping the sides manually. Spectacula spatula was designed to allow one to easily scrape out the contents in jar, therefore, minimizing waste (and clean-up). The Twister jar is a 37 oz volume jar with 16 oz blending capacity and easy-to-read jar markings. Blendtec jars are BPA-free and impact resistant. 3 year comprehensive warranty. An American company, family-owned and driven to build the best quality products - without compromise. Engineered and assembled in the USA.