SureLock, by Accent is a line of plastic food storage containers offering a superior airtight seal. The gray inserts on the lids are a soft TPE material embedded in the polypropylene lid, and carried through from the inner seal. SureLock is offered with a polypropylene base, or a higher level Tritan base with a unique lid design. The TPE feature on the Tritan version offers additional grip for torque. Available in stores soon.