20 21 Cultural probes There were developed and created two types of folders with very basic games for blind and normal vision person. The main goal of the probes is understanding the perception of color, texture and shape. All participant were in the same boat. There were provided the same instructions and materials. For the blind the instructions and marks were translated into Braille. For normal vision the black (non-transmitting light) mask was provided and all necessary parts were hidden. The probes had to be filled in within 4 days.