400 ml Extra Wide mouth Jar is 13.5 ounces ViolizeTM your wild crafted treasures! Wonderful size for dried herbs/teas, only this jar and our 250ml have the Extra Wide mouth openings for easy access. To turn the 400ml jar into a great drinking cup, simply remove the blue guard inside the cap, though it is not spill proof this way the 400ml jar fits into most car cup holders and will withstand very hot liquids near to boiling. Violizetm your morning with a cup of green tea, Matcha or Matte or sprouted flax water.