These are blank envelopes. They are well made of premium kraft paper for and practical use. These envelopes can be used to store coins, bills, checks, postal stamps, , business , and documents. Features -Color: Black, White, Kraft Color -Material: Kraft Paper -Size: 10.50X7.00X0.30cm/ 4.13X2.75X0.12inch -Save time and money while mailing out invitations for an upcoming holiday party, kids birthday, or wedding with this kraft envelopes. -The envelopes are suitable for mailing thank you notes, holiday , greeting , invitations, announcements, , photos, letters, personal mail and direct mail. -Our envelopes are made from high-quality kraft paper that won’t easily rip or tear in transit. -You can use these envelopes to storage coins, jewelry, stamps, crafts, buttons, , party favors. -Kraft paper is easier to use with any writing pens, metal, etc., making you feel more comfortable and smooth when writing. Package list: 30 x Envelopes