Sandblasted to show the slip-resistant core and beautiful wood grain. These perches are practically indestructible as manzanita is a very hard wood. Easy to wash and lasts for a long time. Stainless steel hardware. Each perch varies as this is a natural branch piece. 6" long with .5-1" diameter. Great for finches, canaries, parrotlets, budgies and lovebirds.