Coplin Staining Jar, 5-10 Slide Unit. Holds ten 3" x 1" (75mm x 25mm) slides, which extend above the opening. Can be manipulated without using forceps. Screw cap made of linerless white polypropylene which reduces solvent evaporation and spills during storage. Rectangular base, holds approximately 55ml. Replacement cap 900522 (58-400)?