por | Jul 24, 2026
42″ x 36″ (106.7cm x 91.4cm). Wash with soap and warm water. Latex free vinyl.
por | Jul 24, 2026
por | Jul 24, 2026
Makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared with red and green. Consist of a number of colored plates. On each plate is printed a circle made of many different sized dots of slightly different colors,...
por | Jul 24, 2026
Makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared with red and green. Consist of a number of colored plates. On each plate is printed a circle made of many different sized dots of slightly different colors,...
por | Jul 24, 2026
Grafco Disposable Penlights have a high density LED light, no inconvenient battery or bulb switching. Compact and lightweight, ready-to-use with a shelf life of one year. High intensity bright LED. Year shelf life.
