Dinner Money / Seed Envelopes - Pack of 50 Manilla Envelopes - Size 65mm x 100mm Dinner Money Envelopes - Pack of 50 small gummed manilla envelopes. Brown Manilla envelope, gummed, completely plain writing any details if needed. Size of this miniature brown manila envelope is 65mm x 100mm. Great to also use as seed envelopes