Description: TRAINING PROPS--The owner needs to teach the bird to ride the bike patiently, which can develop intelligence, help them learn new skills, exercise their muscles, and keep healthy. SAFE FOR BIRDS--All bird safe material, no harmful substances, non-toxic, tasteless, bicycle body is made of virtually indestructible stainless steel, durable, you can safely give your feather friends to play. PROPER SIZE--Small size suitable for small parrots, Large size fits for some medium parrots. MULTI-PURPOSE--Train intelligence of the parrot,keep them in a healthy environment and provide essential physical activity and reduce aggression & loneliness for your birds. HIGH QUALITY--Made of high quality and sturdy plastic,wood and metal material, eco-friendly and safe for parrot playing. Specification: Material: Metal+Plastic+Wood Size Chart: Small: 20x10.5x14cm/7.87x4.13x5.51inch Large: 23x13x16.5cm/9.06x5.12x6.50inch Package Includes: Optional: 1 Piece Small Parrot Bicycle 1 Piece Large Parrot Bicycle Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!