Scotch™ Curbside Recyclable Padded Mailer CR-0-1, 5.5 in x 9 in (139 mm x 228 mm), Size 0. Scotch™ Curbside Recyclable Padded Mailers feature a durable multi-layer paper-based construction that protects your items and are curbside recyclable. While lightweight, these mailers are built to withstand rough handling. 5.9 Inches x 9.2 Inches, Size #0, 1-Pack.