Upgrade your mailing game with our Black Poly Bubble Mailers! The 6x10 inch size and self-seal design make them perfect for securely shipping your sports collectibles and memorabilia. Available in a convenient 50 pack, these durable mailers offer superior protection against the elements. At Hitz Sports Collectibles, we understand the value of your unique sports artwork and PSA subs—ensure they arrive safely with our reliable mailing supplies. Shop with us for all your sports collectible needs!