• OPEN END (“catalog”, opens on short dimension) • PEEL N SEAL Flat, Tyvek® mailers in five bold colors are great no-nonsense envelopes for mailing practically anything that you can fit in a flat envelope, where strength and light weight (to reduce postage costs) are a factor. You can avoid printing your return address by using labels that you already have. Want it printed? Click here to Order/Request Quote
