These white polypropylene ribbed caps with HSS-5.6/20 foam induction liners feature a printed liner that reads "Sealed for Your Protection." Caps must be applied with an Induction Cap Sealing System such as our Enercon Super Seal Jr. These plastic caps could be excellent closures for products such as vitamins, medications, spices and more. These caps are offered in bulk at wholesale pricing for the best discounts to be paired with a variety of different containers with matching neck finishes.