Designed with a non-toxic bio-degradable natural wheat straw materialMade with 70% less plastic. Easy-to-use, clean 'amp; store.Use flat on bowls or expand for flat plates. Releases steam to heat up food fast and evenly.Use to steam fresh vegetables in the microwave.Expand, turn upside down and use as a colander. 10-1/2 diameter This product ships in approximately 1 days