KOVA® Glasstic® Disposable Microscope Slide For Urinalysis, 10 Chambers, Hemocytometer Type Grid, 1 Pack of 100 Pressure Prevention aluminum foam covered insert 7344301 aluminum foam covered insert LOWER EXTREMITY * Foot Set * Designed to objectively measure volume of the body parts by using the fluid displacement method where the body part is placed in a water filled tank and the resultant overflow is collected and measured * By taking measurements over time edema can be measured and quantified * Includes volumeter overflow cup and graduated cylinder * The counting grids are suitable for varied magnification levels There are 100 urinalysis microscope slides in a pack