5-Slide Unit. Holds 5 single 1" x 3" slides vertically, or 10 slides back-to-back. Slides extend above the opening, allowing for the manipulation of them without the use of forceps. Screw cap included, but will not fit with slides in the 5-Slide staining jar. Please see 70317 for that capability. Overall measurement: 3 ⅜" H x 2⅜" W base x 2⅜" (dia) top.