The BPA-Free Mason Jar Personal Blender 350XL has all of the time saving and convenient features of the original Tribest Personal Blender, but uses glass mason jars as the blending, serving, and storage containers. It is compatible with most regular-mouth mason jars, making the possibilities for upgrading limitless. In addition, Personal Blender 350XL contains 2 voluminous 23oz. BPA-Free XL cups that are not found on any other single serving blenders in the market. With the Tribest BPA-Free Mason Jar Personal Blender 350XL, taking your favorite drinks on-the-go just got easier.