Galvanized metal. 11.5 inches round. Slight bending required. 3 Dead Bears (set of 3) Wind Spinners$74.99PriceQuantity*Add to CartHow to BendHold image and bend lightly outward with other hand. It will almost bend it's self. Bend out to half to one inch between fins.CarePlease be careful bending. Customer FunPaint one side before bending for some visual fun.