3 different perch bars for budgies / finches etc. The smaller bar is 85mm high, the larger is 135mm, and the nest bar is 45mm (all dimensions inc. base plate). The 2 straight bars are slightly textured as I didn't like the idea of a smooth bar. The nest bar (designed to sit directly outside the nesting hole) has grip recesses in.

3 walls minimum, 10% infill, supports required for the nest bar only if printed vertically. If printed flat, this isn't needed.