These are actually crafted from what is called an apple gourd. The shape of the gourd resembles an apple. The sizes and shape will vary, but we use those that most resemble an actual apple. Some are taller and some are more round than others (average width is 5 to 8 inches and 5 to 9 inches in height). The opening is predrilled to 1 1/8" in diameter and typically attracts wrens for nesting. The bottom is drilled with drainage holes. Apples are strung with wire for hanging in your choice location. Colors are applied with acrylics and each birdhouse is coated with a polyurethene finsh. Includes silk leaf. We offer various apple varieties with appropriate shading (i.e. red delicious, yellow, granny smith). Specify color desired: Red, Green, Yellow