Biomedical Polymers is a medical device manufacturing company who designed a complete test kit for the microscopic counting of leukocytes in whole blood and body fluids. The LeukoChek test kit is designed to count both white blood cells (WBC) and platelets manually. This product is a replacement for the BD Unopette that was discontinued 7 years ago. The CAP requires hematology laboratories to have a procedure in place to manually count WBC and platelets. The LeukoChek comes in packs of 50 per box and has a shelf life associated with it.