Cell Spreaders are ideal for microbiological research of all types, especially for distribution of dilutions, i.e., colony counts. Cell Spreaders are autoclavable which avoids waste of “disposables” thus becoming an environmental benefit. Easy to manipulate around curves and into corners of prepared plates without slippage. They are non-breakable and sturdy to prevent agar surface tears. Produces an even smear for any permanent slide staining, i.e., PVA preserved fecal specimen for protozoan parasites. 30mm head for prepared bi-plates and 60mm head for 100-150mm prepared plates.