Our Resealable Press On Vinyl Envelopes 8 ½ X 11" Shield vital documents from harsh job site elements with waterproof and weatherproof protection. Featuring a convenient hang hole at the top and crafted from durable 8 mil vinyl to withstand tears and punctures. The dimensions our envelopes are 9 1/16 inches by 11 15/16 inches (width by length), with a usable size of 8 1/2 inches by 11 inches. It is made of 100% virgin vinyl with acrylic adhesive and has a full back adhesive. It is recommended to wait 24 hours before setting it. In terms of temperature performance, it operates optimally within the range of 32°F to 85°F. Each box contains 50 envelopes per package.