Aviditi M1081K Corrugated Easy-Fold Mailer, 10-1/4" Length x 8-1/4" Width x 1-1/4" Height, Kraft (Bundle of 50) Economical kraft bookfolds help cut mailing costs These one-piece mailers have scores at multiple depths to ensure the proper fit for your products Simply place product in the center, fold in the sides at your desired depth and seal with tape Economical 200#/ECT-32-B kraft corrugated construction Measures 10-1/4-inches length by 8-1/4-inches width by 1-1/4-inches height