Bonka Bird Toys 50075 Big Blocks'n'Knots Bird Toy parrot cage toys cages preening african grey 50075 Big Blocks 'n' knots bird toy for those medium sized feathered friends that like a bit of destruction in their lives. Three square blocks of corrugated cardboard are strung and knotted together with a colorful array of soft cotton rope, giving your companion an array of healthy chew and preening activities. It measures approximately 24 inches high by 5 inches wide, comes complete with a quick link for easy cage placement.