Parrot Training Perches are ideal for teaching flight and tricks to parrots. They eliminate the distraction that colorful play gyms and climbing trees can create, keeping your parrot's attention on you for training. Since the two stands are independent, the ways you can line them up are numerous. Set them up parallel to each other to teach the parrot to fly between the two stands. Set the perches up perpendicular to each other to keep two parrots on them but not fight with each other. These parrot stands are great for small to medium sized parrots including Budgerigar, Cockatiel, Parrotlet, Lovebird, Parakeet, Sun Conure and other Conures, Senegal and other Poicephalus Parrots, African Grey, Cockatoo, Amazon, and small Macaws. T Perches are available for large cockatoos and macaws. The height of the stands is adjustable from 34-62" and they weigh around 10 pounds each. The heavy base ensures that the stands do not tip over when a parrot lands on the perch at speed. The NU Perch® which is included is more comfortable for your parrot and affords an easier landing point than machined dowels or natural perches. NU Perches are 100% non-toxic for your parrot. Stainless steel bolt and socket for added durability and peace of mind! Get the standard inverted L shaped perches for most of your training needs. For training multiple parrots on the same perch or for heavier birds, you can opt for a T perch. Small (1/2" diameter) is required for budgies, cockatiels, parrotlets, and lovebirds. The medium (3/4" diameter) size is better suited for Senegals, Conures, Amazons, and other parrots of that size range. The large sized perch (1-1/4" diameter) is ideal for African Greys, Cockatoos, Amazons, and small Macaws. These stands are compact and transportable. Not only can you easily move them around the house, you can bring them along with you whenever you travel with your parrots.