#6 Coin Envelopes - 3.375 x 6
#6 Coin (3 3/8 x 6) envelopes are ideal for storing jewelry, coins, seeds, keys, cards, and other small items! Available in vivid, matte shades like Ultra Fuchsia and Smooth Black that are easy to write on and label. Please note: Envelopes smaller than 3 1/2 x 5 inches cannot be mailed via USPS.