This wide mouth lids is consist of polypropylene and comes with an heat induction seal liner. The heat-induction sealing liner will stick to the bottle mouth and separate from the cardboard after heating, so as to achieve the effect of sealing the bottle.
The plastic screw cap features Matte surface top and ribbed side. The size of this plastic wide mouth is 110/400, it is suitable for bottles with a mouth size of 110mm. The ribbed design increase friction and make the cap easier to open. Black is not the only color, if you order in bulk, we can provide customized service and favorable price.