This premium kraft bubble mailer 500-pack is expertly engineered to provide maximum defense for your fragile, small-sized shipments without adding unnecessary weight to your postage. Fabricated from heavy-duty, puncture-resistant golden kraft paper, each mailer is lined with a high-rebound bubble cushioning layer that absorbs shocks, bumps, and drops during transit. The secure, self-seal adhesive strip features a tamper-evident closure, completely eliminating the need for packing tape and streamlining your shipping workflow. Outfitted with reinforced 2-sided heat-sealed edges, this rugged mailing set is the ultimate professional solution for safely shipping jewelry, delicate electronics components, cosmetic samples, and small collectibles.