flexible plastic and features a straight flap opening

these envelopes are ideal for business letters and all 3 x folded standard sized sheets of paper

These 6 1/2" x 6 1/2" envelopes are made from 30 lb

It also contains 85% recycled content

This elastic is threaded through the pack panel near the top and in the middle

eBook: Habitats & Communities - (PDF version - 1-User Download) - ISBN 978-1-55319-191-9 - Grade 4 - 6 VariesBy:Default flexible plastic and features aRealizing the importance and fragility of the world's ecosystems is critical for today's students. Acid rain, global warming, the endangerment and extinction of a variety of plants and animals are real threats to our very survival.