Seal jars perfectly with these advanced foam inserts. The pressure-sensitive liner ensures a strong seal for dry or powder products. Easy to use—just center the insert on the jar, apply the cap, wait 24 hours, and you're done. Perfect for preserving herbs, spices, and more without any tools or heat.
  CELINE Mason jar sealers are designed to be the ultimate solution for canning. The torque-activated coating ensures a firm seal, while the wide mouth design fits a variety of glass and plastic jars. No induction sealer needed means you can use these jar cap seals anywhere, anytime. Keep your kitchen organized and your products fresh with these must-have sealing inserts. The white foam insert is durable and easy to remove when needed.