Description:training Props--the Owner Needs To Teach The Bird To Ride The Bike Patiently, Which Can Develop Intelligence, Help Them Learn Skills, Exercise Their Muscles, And Keep Healthy.safe For Birds--all Bird Safe Material, No Harmful Substances, , 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+woodsize Chart:small: 20x10.5x14cm/7.87x4.13x5.51inchlarge: 23x13x16.5cm/9.06x5.12x6.50inchpackage Includes:1 Piece Small Parrot Bicycle1 Piece Large Parrot Bicyclenote:1. 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 !