Bubble Out Bag with interior dimensions of 4" x 7.5" made out of a slick and flexible polyethylene material Pack of 550 mailers that make for a cheap packing and shipping solution when purchased in bulk Bubble pouches exterior dimensions are 4" x 8", with its extended lip and high strength side seams 100% Recyclable flat mailers made in the USA and require minimal space for storage Bubble bags are clear so its contents are available for viewing after sealed with its pressure-sensitive closure