An iron type golf club head includes a primary club head body composed of metal. The extract comprises alkaloids, coumarins, saccharides, proteins, polysaccharides, glycosides, saponins, tannins, acid, flavonoids and others. , a house, parked boat or parked airplane, includes a monitoring or sensor system arranged to obtain information about the structure, an exterior of the structure andor an interior of the structure different than the location of the structure, and a communication system coupled to the sensor system and being provided with a location of the structure. Further, a rotation unit may be provided in order to rotate the polarization elements with respect to an optical axis of light so that a direction of grid of each polarization element can be parallel to each other.