8 Envelopes Self Seal, 500, QB Check Envelopes, QuickBooks Payroll, Peel & Seal, Security Double Window, 8 11/16 x 3 5/8, 8 Envelope fits Similar to 8 5/8, Bonus QB Pro-Advisor Phone/Email SupportPERFECT FOR PAY CHEKCS: Size 8 envelopes perfectly fit your QuickBooks checks, pay check, voucher, QuickBooks payroll, stub, other check writing software, business checks, Size: 3 5/8 x 8 11/16 Inches, double window, fits similar to 3 5/8 x 8 5/8 size envelopes. (NOT FOR INVOICES)BonUS QUICKBOOKS PRO-ADVISOR SUPPORT: FREE QB Pro-Advisor support within one month of the purchase. A phone number and email address would be provided to speak with a person for the quick resolution of urgent issues, error codes or other QB questions. No need to provide any credit card information as this service is totally complementary.ConVENIENT SELF SEAL: No more licking, No more moistening, No water, Just Peel off adhesive paper strip and press for a permanent seal. Save time and effort. 24 LB White Wove premium quality paper, Set of 500 envelopes come in an attractively designed sturdy box that will easily last the lifetime of the checks.COMPLETE PRIVACY AND CONFIDENTIALITY: Envelope Security Tint for privacy and confidentiality of your payroll checks. The content of the envelope is not visible from the outside. The Double Window design allows only the addresses to show up. The check amount, check memo will not show from the outside.QUALITY PROMISE: We stand behind the quality of our products 100%. We are sure you are going to love the quality of our #8 double window self-seal envelopes. If you don't like them there is NO RISK to you. We offer a 90-day manufacturer money back guarantee.