Yellow Kraft Paper Bubble Mailers 25/50/100/150/200 Pack #000-#7 (10 Sizes)
Outer layer: thickened yellow kraft paper (wear-resistant, resistant to slight splashing). Shockproof: Bubble film effectively cushions collisions and falls during transportation. #3 8.5×14.5 21.6×36.8 Files + A4 paper folded in half.