For some time past, I felt a little guilty when I threw plastic wraps after using them only one time. To avoid using wraps in such way and reduce waste, I have designed this re-usable silicon wrap. As long as one washes it, one is able to use this lid repeatedly. This has a ventilation nail so the users can put it into microwave ovens just as one warms up with plastic wraps. When its inside is warmed up, the ventilation nail goes up so the wrap doesn't jump away. Concerning the ceramic bowls, we have adopted a irregular rectangular form to prevent copy. In addition, every corner has each angle to offer the best way to use for each user.