SEM image of a reed from a woodwind instrument. The reed is from Giant Grass (Arundo donax ), also called, wild cane or giant cane, native to South Eastern France. Small slivers of the giant grass are shaped into thin wedges that vibrate when air is blown across the surface. These musical reeds are used by woodwind instruments such as saxophones and clarinets, and double reed wind instruments such as bassoons and oboes. The reeds are also used in saxophones and clarinets, The magnification of the image is x80 when printed 10 cm wide.