What You Will Get: 12 pcs 14”x16”individually packaged expanding foam packaging bags and 6 pcs 8x8x5 inches Paper boxes; Please note that the heat generated when slapping the pc shipping foam bag is normal and it will soon return to room temperature, just like holding a hot cup of coffee Quick Work: when you open the "L" symbol, it immediately contacts with the reactant in the "R" symbol; Before the final product breaks through the film and fills the envelope, you only have a few seconds to completely combine the two, so it is very important not to start making foam and inflating it until you have prepared all the necessary supplies; Once you start, you only have a short time before the foam hardens and feels like a foam cup Easy to Use: place foam bag on desk, crack “L”, you will hear “peng” sound, then slap “L” and “R” with both hands quickly; Pat 20-25 times within 8 seconds; Then wait for liquid expand and break through L/R area, and quickly distribute liquid evenly throughout bag; Once you've done that, you should position your item and gently push it into the expanding foam; In just a few seconds, the foam will harden and form a bespoke mold around your object providing optimal protection Ideal Packing Solution: expanding foam for shipping are applied to use on an industrial scale for packaging odd shaped products, or oddly shaped items, meters, vases, crafts, and even a fully built PC with GPU installed, pc packing foam; They are good for shipping fragile items Shipping PC: according to experience, when using expanding foam for pc shipping, please place it in case as soon as bag starts to expand; It will automatically adapt to the shape of computer, providing protection, not wait until bag expanded significantly; Be careful to avoid sharp objects Features: This cost-effective expanding foam bag allows you to transport your equipment without dismantling its components, significantly reducing the risk of damage caused by collisions and vibrations during transit, thus saving time and enhancing efficiency. Compared with traditional expanding foam bag, our packing foam is smaller and easier to carry, takes up less space, and is convenient for storage. Specifications: Material: foam, kraft paper Color: white, brown Size: Expanding foam packaging bags: 14”x16” Paper boxes: 8x8x5 inches Package includes: 12 x Expanding foam packaging bags 6 x Paper boxes Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.