• Easy to fill and clean wide-mouth Jar
  • Acceptable for a wide variety of industrial applications
  • FDA compliant clear polystyrene (PS) material
  • Made with natural threaded polypropylene caps

I have used these jars to mix lotions with oils, and have found them to be very leak-resistant. I can't in good conscious call them leak proof, but they haven't leaked on me yet, and I have stored them upside down for extended periods. They're an excellent size for mixing small batches of hand lotion with essential oils mixed in.