Well Ventilated: The removable top mesh screen provides plenty of ventilation for optimum airflow, and allows full spectrum, UV and IR light penetration. Easy to feed your small animals or reptiles from the top feeding holes opening Safe and Secure: A sturdy plastic frame protects the glass and edges. A strong clip-on mesh lid provides added security. And a security lock prevents your pets or animals from escape Very Advantage: Easily disassembled for transportation and easy installation. The “lift and pull “ sliding door is simply and very convenient High Security: Raised bottom frame in order to fit a substrate heater. Top is made of metal lid which is safe for overhead heat sources to meet the needs of the reptiles Waterproof: With 1inch high transparent PVC at the bottom for water