16 oz Block Bottom Side Gusseted Bag, 4-3/8″ x 3-1/8″ x 10-7/8″ – Matte Black

Our 16 oz Block Bottom Side Gusseted Bag in Matte Black have a simple, clean look. The block bottom allows them to stand up even before they are filled and the four corner seal adds durability for shipping and handling.

Pouch Specifications:

• 4-3/8″ x 3-1/8″ x 10-7/8″
• 16oz / 500g (based on coffee beans)
• Thickness: 5.4 mil
• Materials: MBOPP / PET / ALU / LLDPE

Do I need a valve?