At first sight, this product might look a little like clingfilm, but bear with us: it's much better. First, pull it out of the box and tear the end with the handy serrated edge. Now, fold the bottom flap and stick it to the two side flaps. Pop your letter/photo/card inside and seal. Et voilà: you have your own custom-created envelope, ready for decorating with some bright mt Tape.
Made of washi (traditional Japanese rice paper). Box with serrated edge. Cut to required length and press sticky sides to make an envelope or pouch. Roll is 23.5 cm wide and 5 m long.