Material: Fir construction Solid wood; Durable with good Ventilation; Water proofing treatment 100% safe for small animals; 4 x access doors Three Internal Perches; 2x Nesting boxes Plus a easy cleaning Tray; Built-in ramp connected between floors with stair lock Heavy Duty Metal Bolts; Zinc rear pull out tray for easy cleaning Pre-Drilled holes for quick easy assembly with installation instructions provided. You DON T need to be professional to build it!