4.) 600 #1 7.25" X 12" Kraft (usable space 7.25" x 11.25") Bubble Lite Mailer

4.) 600 #1 7.25" X 12" Kraft (usable space 7.25" x 11.25")-- Our Kraft Bubble Mailers are constructed with high quality materials. The self-sealing mailers have a finned bottom that provides additional protection and greater overall strength and safety. The double-sided protective edges and the continuous layer of thick high quality bubbles provide outstanding stiffness and puncture resistance.