Description
The touch square is intended primarily for blind and visually impaired people. It has the shape of an isosceles right-angled triangle with angles of 45° / 90°. The measuring length is 13.5 centimeters, the set square measures with an accuracy of 0.5 centimeters. It has tactile and black-print markings, as well as a tactile edge with a serrated texture that facilitates the correct positioning of the utensil. The square is made of yellow plastic.
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