This coplin jar allows for complete submersion of slides for staining. Has 4 grooves with in jar to separate each slide. Each groove allows for 2 slides to be placed back to back. Coplin jar has threaded screw top. Autoclavable Dish will hold 5 (10 slides back to back) slides that measure 3" x 1" slides (75x 26x 1.3mm) Coplin jar measures approx. 4.50" tall , 2.36" top and bottom diameter. Made of Polypropylene This coplin jar allows for complete submersion of slides for staining. Has 4 grooves with in jar to separate each slide. Each groove allows for 2 slides to be placed back to back. Coplin jar has threaded screw top. Coplin jar measures approx. 4.50" tall , 2.36" top and bottom diameter. Made of Polypropylene. Autoclavable.