Made from solid high density polypropylene blocks with 13 slanted channels (on a 10o angle), 1/16"(1.5mm) (W) x ⅜" (9mm) (D). It is made to hold 3x1" (75x25mm) slides during cleaning, draining excess immersion oil, and even drying. They are white in color and are chemically resistant.
4"(W) x 12"(L) (10 x 30.5cm)