Specifications: We could supply below bubble envelopes with specifications: Paper: Pe-coated kraft paper 95 g/m2, poliethylene coating 20 g/m2. Print: Customer brand or no-name. The sizes: 18 1/2 x 13 3/4 - code k 17 1/2 x 11 3/4 - code j 14 1/8 x 10 5/8 - code h 13 1/4 x 9 1/2 - code g 13 1/4 x 8 5/8 - code f 10 3/8 x 8 5/8 - code e 10 3/8 x 7 1/8 - code d 8 1/2 x 5 7/5 - code c 8 1/2 x 4 3/4 - code b 6 1/2 x 4 3/8 - code a Looking forward to any inquiry.