Surdo Ax 18" x 40 cm in aluminum with 8 tensioners and synthetic membranes. Semi-professional surdo from CONTEMPORANEA LIGHT, a new line from Contemporânea , which replaces the Ginga line and surpasses it in quality. - Much less weight, the material is made of matt aluminium, 0.8mm - Steel ring, transparent lacquered (not painted) - The material of the rings and rods is the same as the professional Contemporary range The number of rods varies according to the diameter of the surdo.