The 4F-M-B Series insect cages are specialized enclosures crafted for rearing and studying very small insects, including whiteflies, thrips, aphids, and tiny parasitoids. These models are equipped with ultra-fine black nylon mesh (typically ~150–300 µm), offering excellent containment and airflow for sensitive insect species.

The series name indicates:

• 4F: Fine mesh design, suitable for preventing the escape of the smallest insects

• M: All mesh panels for maximum ventilation

• B: Black mesh, which enhances visibility of pale or light-colored insects and eggs

Each cage includes a front-facing sleeve opening to facilitate safe handling, feeding, and specimen transfer. The external fiberglass frame ensures cage stability without internal obstructions—important for minimizing hiding zones and improving work efficiency.