2 Drawer/2 Door Stack: This devise is comprised of 4 two Inch square cubes stacked one over the other, two have slide out doors and two have pull out drawers, each cube opens from a different side. You can easily reposition the cubes and/or the openings to continue stimulating your parrot's interest. The parrot must stand on one foot and hold the devise steady with the other, open the door or drawer with his beak to collect the food items. This devise requires extremely good balance and coordination. The parrot must have enough experience and self confidence to know that thru his hard work he will be find a reward. Use a combination of favorite familiar food items mixed with something new. Due to the effort required your parrot should be rewarded with something he enjoys and because of the effort he must make he will be more receptive to something new This device is comprised of four 2-inch square cubes stacked one over the other This device is comprised of four 2-inch square cubes stacked one over the other Each cube opens from a different side Requires extremely good balance and coordination.