100 Pack Colorful Envelopes #10Envelopes Letter Size#10 Business EnvelopesEnv Package Including: 100 pack colorful business envelopes (4.13 x 9.5 in)Superior quality:Made of 120 GSM paper.Keep envelopes sturdy, hard-wearing and privateEasy to Seal:No need to seal with water，just peel and press.Multipurpose:Ideal for invoices,mailing letters, documents, checks,bills,announcements,thank you notes,greeting cards,wedding,baby shower,etc Shipping