Portable Hiking Camping Birdcage Travel Cage with Standing Bass Foldable Pet Birdcage Backpack3-Side Ventilation: The 2-side and top entrance are designed with thickened nylon breathable mesh fabric; multiple vent holes are designed to increase breathability, effectively ensure air circulation inside the bird travel bag, making travel more comfortable and suitable for all seasons.Wide Field of View and Blackout: The 3-sided abrasion-resistant clear PVC provides a wider field of vision, reducing irritability stress for birds, giving you a good field of vision for checking your pets. 300D cationic waterproof Oxford cloth curtains on both sides and top can protect your pet from sun, wind and rain. Lightweight and Portable: Double zipper design for quick assembly/disassembly. The assembled size is 16.9*13.4*11 inches. Back pressure relief design, shoulder and waist straps can effectively relieve the pressure on the shoulders, back and waist, more stable and safe when traveling with pets.Widely Used: Detachable Wooden Standing Bass, 13.8" long and 0.8" diameter. There are 3 adjustable heights. Unscrew the nuts on both sides and remove the perch, it can also be used as a daily pet backpack for cats, dogs and other pets.