Printed onto sheet aluminium (similar to what a road traffic sign is made from) A3 size.The technique makes the print completely waterproof. Comes with 4 adhesive stickers which will adhere the sign to almost any surface. I have a 1cm border to allow sufficient space for a frame without imposing on the picture.

My signs are 100% waterproof. They can even be put through a dishwasher with absolutely no fading. They can be hung outdoors and cleaned with water and a cloth. All the advances of a high quality poster but none of the "fragility".