Office Depot #0 Kraft Self Seal Gold Bubble Mailers 6" x 10" Pack Of 25, light weight bubble mailers save you postage costs, no other cushioning is required. Self-seal with convenient, tamper-evident, peel-and-stick lip. High-slip 3/16" bubble for easy insertion. Constructed from an attractive recycled golden kraft paper. Greener choice contains 100% recycled content with a minimum of 25% postconsumer recycled content.