Made from BPA free plastic, non-toxic, 100% food safe and healthy. 
  Common lids size 3.3”(86mm), fits most wide mouth Mason, Ball, Kerr jars canning. NOT fit for standard or regular mouth jars. 
  Upgrade bigger hole size, convenient for water filtration. 
  Supporting stand feet design, no need any accessories. 
  Suit for all types of densely nutritious sprouts, including broccoli, alfalfa, mustard, mung bean and more.