Poly bubble envelope with poly film and PE bubble. It's good to protect from damage during the transit. A: characteristic: the bubble can protect the goods from damage during the delivery course. Its quakeproof, push-proof and waterproof. It’s light, easy and safe to use. It’s a perfect replacer of the wood box and paper box for the packaging of the mail. B: using area; it can be used to post tape, CD, camera lens, film, certificate, IC card, mini-type machine accessory and so on goods that need protecting. Item No.Standard Size (inch)Standard Size (mm)#0004” x 8”102 x 203#005” x 8”127 x 203#06” x 10”152 x 254#17.25” x 12”184 x 305#28.5” x 12”216 x 305#38.5” x 14.5”216 x 368#49.5” x 14”241 x 356#510.5” x 16”267 x 406#612.5” x 19”318 x 483#714.5”x 20”368 x 508#CD7.25” x 8”184 x 203A3 size11.7" x 16.5"297 x 420A4 size8.3" x 11.7 "210 x 2971/2 A4 size4.2" x 5.9”105 x 149A5 size5.8 " x 8.3"148 x 210A6 size5.7" x 4.2"144 x 105