LocknLock: Twist Range. An ideal range of round containers to store fresh vegetables, fruits, nuts or even pasta and rice. The LocknLock silicone seal and locking mechanism means that your favourite foods can be stored hours before eating and yet still remain as delicious and fresh as the second they were made. Easy to open and close - ultra secure twist locking system to keep your food fresh.. Multipurpose Containers - Use our containers for food or any other purpose. Different sizes available - Tall, short, wide, our round twist containers cover all you needs. LocknLock. Discover our full range of LocknLock food containers. Round, rectangular, square or sets, we cover all your needs.