Attract the attention of passing-by Purple Martins. It can be difficult to attract martins to new housing—they prefer to be with other martins at an established nesting site. But our clever life-like decoys are believed to increase your chances of attracting martins. Perch them on your house, gourds, or fences and they help create the appearance of an active martin colony. Your house appears occupied and ready for more families. Instructions and mounting hardware are included for all types of martin dwellings. Molded, dark blue plastic, 7 inches long.