No. 10 Regular Flip-Stik® Self-Sealing Envelopes, 4-1/8" x 9-1/2", White Sulphite Side Seam 24-lb, Vellum Finish (SFI Certified) - Box of 500 Envelopes

No. 10 Regular Flip-Stik® Self-Sealing Envelopes, 4-1/8" x 9-1/2" Designed for Easier Seal. Simply Flip Up Bottom Flap and Fold Down Top Flap to Seal (Latex Adhesive). White Sulphite 24-lb Paper with Vellum Finish Two Side Seams Under, Flip-Stik® Self Seal, Boxed with Twin Flaps Down, 500 Envelopes Quality Mailing Products from Linton Mailing Supplies®