Common stocks include light-to-medium paper (around 100–130 gsm), heavier 150 gsm paper, and thick 250 gsm cardstock; kraft paper is also frequently used.
Typical closure types are: gummed flaps (wet-to-seal), self-adhesive or peel-and-stick flaps, and pressure-seal/flap closures—each used depending on reusability and security needs.
Envelopes meant for gift cards, checks, or banknotes commonly list dimensions such as about 3.5 x 7.25 inches or 4 x 7 inches to provide ample space.
Common sizes range roughly from 3.5 x 6.5 inches up to about 4 x 7 inches. Some listings show dimensions like 6.8 x 3.3 inches or 7.09 x 3.74 inches—these reflect orientation or different measurement order, so check which side is width vs. height.
Money card holders typically add printed greeting fronts, perforated slots or holders for bills and gift cards, heavier cardstock for stiffness, and decorative finishes (for example, laser-cut designs) for a more formal presentation.
Some sets are sold as color assortments—for example, a 100-envelope pack that includes blue, red, yellow, green, and pink (20 envelopes of each color).