Chunky blocks of parrot-safe Douglas Fir, textured with slats and holes for your bird to latch onto! A great toy for macaws and cockatoos! Stuff treats in the vine balls and slats to encourage foraging. The wood pieces on this toy are individually cut in our workshop and every piece will be slightly unique. The wood is all kiln-dried, chemical free, and pollutant free. Expect slight variances in size, thickness, hole may be slightly off center, and edges may not be perfectly smooth. Our bird customers enjoy them! A large toy!