I am always trying to find new and interesting textures of natural woods for my parrots to chew on... this assortment includes over 8 Varieties of natural soft & hard woods in oddball shapes. The variety of woods I use is a secret.. but don't worry, it's all bird safe!  Sizes range from 2-4" long and vary in thickness from 3/4 to 2" wide.  It also makes a great shreddable foot toy for my cockatoos and blue and gold macaw  as well!  Smaller parrots like my ringnecks spend the day shredding just one chunk.. great for beak conditioning!  Big 1/4 Hole.