Material: Kraft paper outer; plastic inner; 5.5 mil thick (one side) Outside size: 2.7x3.7 inch (7x9.5 cm), Usable size: 2.36x2.56 inch (6x6.5 cm) Transparent Window: The transparent window on the seed packet conveniently allows you to quickly see what's inside. Moreover, our window is positioned closer to the bottom. Thus, even if there are only a few seeds inside, you can easily see them Resealable: The zippered self-sealing design allows you to reuse this seed packet, and the tightness is also ensured Seed Collection Template: The envelope is designed with a preprinted seed collecting template and provides enough space for you to fill in seed information Seed Envelopes with Clear Window 2.7x3.7 inch Small Resealable Brown Kraft Paper Seed Packets with Preprinted Seed Collecting Template for Storage Organizing Flower Vegetable Seeds