Definition of in session. 1  1 : in the process of meeting formally Congress is in session right now. 2  2 US : conducting classes School will be back in session at the beginning of September.
Mylar Pieces. Circles & Hexagons. Multiple Sizes. Hexagon & Circle Mylar Pieces are heat resistant and made especially for quilters who desire to make perfectly shaped circles and hexagons each time with hand or machine piecing and appliquÃ©. Cut fabric 1/4 larger than Mylar template.
Foil and Mylar Balloons. Foil and Mylar balloons are metallic in appearance and can be printed with images or messages. Foil balloons are usually made of nylon sheet and tend to hold helium much better than latex or rubber balloons. Mylar balloons are made of a type of polyester film. These types of balloons are generally more expensive, but they make a fun gift or decor item for weddings and parties.