... 2.Anti-water,recyclable 3.the surface is ideal for writing 4.Can show bubble or not Co- ... shapes 4) Clean and easy to use.5) Lightweight for postage savings , a perfect replacer of the wood box ... -functions for mailing and package.7) 100% recycleable UsageBe used in post office, logistics, craft glasswork, tape, CD, camera lens, ... 40welcome you inquiry! Safe Co-Extruded Poly Bubble Bag for Posting Package