cheapest in the country
Description
32.7¢ per mailer — 55 mailers for $17.99. Unit price rounded; shipping and tax extra.
Watch CardShell
How to use CardShell
Insert your protected trading card long edge first, seal the mailer, turn it over, then apply your mailing label to the smooth front.
AI-illustrated application concept.
CardShell Mailers are rigid paperboard trading card envelopes designed as a structured, presentation-ready format for packing and shipping trading cards.
Made by Midvale Paper Box in our own manufacturing facility. Midvale is the actual manufacturer of CardShell Mailers, giving customers direct-from-the-manufacturer quality, consistency, and product knowledge.
Built for efficient trading-card shipping:
• 0.04 in paperboard thickness
• Approx. 0.04 oz shipping weight per mailer
• Flat-glued sides for a clean, consistent profile
• Compatible with USPS Standard Envelope shipping requirements
Pack details:
• Quantity: 55 envelopes
• Envelope size: 7 x 4.35 in
• Material: Lightweight rigid paperboard
• Brand: CardShell Mailers by Midvale Paper Box
Designed for trading card sellers, collectors, and fulfillment teams that need a consistent paperboard mailer format.