Green Coin Envelopes 4163 Starburst Coins, 3-1/8 x 5-1/2", Size 5-1/2, 24 Lb., Pack of 25. The popular envelope for payrolls, parts, tips, seeds and instruction enclosures. Made of strong 24 lb Starburst Paper with heavily gummed flaps and open end. Flap requires moistening to seal.