Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper

VERSATILE #10 BUSINESS ENVELOPES: Standard #10 size (4-1/8 x 9-1/2 inches) is ideal for mailing letter-sized documents folded into thirds, including invoices, statements, business letters, forms, and more

SECURE MAILING ENVELOPES: A blue security tint with safety pattern blocks visibility, helping safeguard confidential information from prying eyes, even when held up to light

SAVE TIME WITH SELF SEAL ENVELOPES: The Release & Seal self-seal closure lets you peel and press for a strong seal, eliminating the need to lick envelopes or use wet sponges

PRESENT A PROFESSIONAL IMAGE: Thick 24 lb white wove paper with side seams creates a crisp, high-quality windowless envelope that reflects well on your business and holds up in transit

BULK VALUE PACK: Stock up on 500 security envelopes that keep offices, small businesses, schools and homes stocked and ready for consistent mailing needs