Neubauer counting chamber improved, with special depth, chamber depth 0.01mmNeubauer counting chamber improved, with special depth, chamber depth 0. 01mm Material: glass. For leucocyte, thrombocyte and erythrocyte counting. Double counting grid. Counting grid with nine large squares. The four corner squares are used for leucocyte counting. The smallest square in the centre is split into 25 group squares and these in turn are split into 16 small squares. Five of the group squares are used for erythrocyte counting. Large