11 inches x 18 and 3/4 inches
Hooked plastic
 
This is a psychic eye, painted on a potato sack, and hooked over with plastic cut in 1/2 inch strips.
For me I become more senstive if I am overstimulated on off balance molecules, plastic being a material, that becomes off balance very easily. As an intuitive person I have just learnt to monitor my level.