Used for staining slides, or as a developing chamber for thin-layer chromatography. Holds 5 single 3" x 1" (75 mm x 25 mm) slides vertically, or 10 slides back to back. The screw cap is made of linerless white polypropylene to reduce solvent evaporation. The unit has a rectangular base and holds approximately 60 mL. Manufactured from soda-lime glass. Approximate inside dimensions: 26 mm L x 26 mm W x 90 mm D. 60-mL capacity.