120 Pack Black Rigid Mailers, 7"x4.35" Trading Card Shipping Envelopes for Collectors & Sellers, Perfect Size Shipping Envelopes for Mailing Semi-Rigid and standard rigid card protectors

Keep your trading cards safe and secure during shipping with CUXELMAR's Stay Flat Cardboard Mailers. Measuring 7" x 4.35", these black rectangular envelopes are perfectly sized to accommodate semi-rigid card sleeves and toploaders, ensuring your valuable cards arrive in pristine condition. Crafted from sturdy cardboard, each mailer provides reliable protection against bending and damage during transit. The convenient self-seal closure makes packing quick and hassle-free, saving you time when shipping multiple orders. With a universal, unprinted black design, these mailers offer a clean and professional appearance suitable for any mailing occasion, giving you plenty of supply for all your card shipping needs. Whether you're a collector, trader, or seller, these dependable mailers are an essential addition to your shipping supplies. Please note that the item dimensions are 7*4.35", so be sure to verify sizing details before ordering to ensure the best fit for your specific needs.

• DESIGNED FOR STANDARD CARD PROTECTORS – A PERFECT MATCH EVERY TIME Each 7" x 4.35" black mailer is sized to fit a standard trading card housed in semi-rigid CS-1 sleeves or standard rigid card protectors. There’s even room left for a 4" x 6" shipping label. No more trimming cardboard or squeezing protectors into undersized envelopes. Your cards slide in smoothly and stay put during transit.
• Lightweight yet sturdy structural design. These envelopes are made of high-quality recycled kraft paper, with each one weighing less than 0.4 ounces. This helps reduce transportation costs while offering excellent tear resistance. Their design is capable of withstanding various operations during the handling process. Through the mail sorting system and transportation conditions.
• RIGID YET LIGHTWEIGHT – BUILT FOR USPS AND EBAY STANDARD ENVELOPE At approximately 0.4 oz per mailer and around 0.25 inches thick when loaded with a protected card, this envelope is engineered to stay within the dimensional limits for automated USPS sorting. You get the stiffness needed to guard against bends and corner dings, while still qualifying for the most affordable First-Class Mail and eBay Standard Envelope rates.
• SELF-ADHESIVE PEEL & SEAL – FAST, CLEAN, RELIABLE Forget about water, tape, or messy glues. The integrated adhesive strip seals firmly with a quick peel and press, and the flat side seams ensure your mailer glides smoothly through sorting machines without catching or tearing. Spend less time on packaging and more time on sourcing your next grail.
• FOUR PACK SIZES, YOUR CHOICE OF COLOR – SCALE YOUR WAY Whether you’re a weekend hobbyist or a high-volume breaker, there’s a pack for you: 60, 120, 240, or 500 black mailers. Prefer a classic look? We also offer the same mailer in white. As always, your order is backed by our dedicated support team. If anything isn’t right, reach out and we’ll make it right, no hassle.