#3 Coin Envelopes - 1,000/pack, White, Acid Free, 4 1/4" X 2 1/2" (4.25 Inch X 2.5 Inch), Best Quality Qty.: 1,000 pcs (2 Boxes) in original packing Size (W x L): 2-12" x 4 14", ideal for holding coins, small parts, keys, jewelry etc. Weight (Density) of Paper: 27 lbs (100 gsm), acid-and-chemical-free paper Flap: Pre-gummed flap for easy sealing Color: Bright white, easy write on