Description: Features: brand new and high quality Durable bird nesting box made out of all natural wood, strong and no toxic. The small bird entrance protects birds from wind, rain and predators such as cats and rodents. Side opening for easy cleaning and removal of bedding materials. This birdhouse is perfect for songbirds such as finches and other wild birds. Reinforced joints and thick panels ensure long-lasting durability. Watch birds settle and grow in their natural habitat with this bird holder. A built-in baffle prevents the eggs from rolling and protects the eggs. Great educational opportunity for kids. Easy installation. Specification: Material: Paulownia Wood Color: As pictures shown. Optional Size: S/for M/L/XL Size S: 20x12x12cm(7.87x4.72x4.72in); window diameter: 5.5cm(2.17in) Size M: 25x13x13.5cm(9.84x5.31x5.31in); window diameter: 5.5cm(2.17in) Size L: 29x15x15cm(11.42x5.91x5.91in); window diameter: 5.5cm(2.17in) Size XL: 34x17.5x20cm(13.39x6.89x7.87in); window diameter: 6.5cm(2.56in) Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Bird Feeder(other accessories demo in the picture is not included.)