You get double with this purchase -- both a preener and a perch. It's easy to attach anywhere on the cage -- inside, outside, or from the top. Just insert the threaded slot through a cage bar, then apply the plastic end cap from outside and tighten -- protecting a curious beak from the hardware. The soft, comfortable perch gives birdie feet firm support while the bush at the end is preened. You can even hand wash this cotton/poly blend.
Sm Byrdy Bush-Booda measures approximately: 7" length x 5/8" diameter