The Bayan takes on the bass part of the drum duo. The body of the Bayan is mostly made of Nickle Polish.
The Dayan is made of different types of wood.The size of a Dayan is defined by the diameter of the skin. Sizes of 5 to 6 inches are in use. The standard sizes are about 5 1/4 inches to 5 1/2 inches whose tuning is around C. The measurements can also be given in centimeters.
It includes bag,hammer,binnu and cloth for covering the upper head of tabla.