PTO Pulley is functioning by putting the axle in it and with the engine of the tractor taking power output for external applications such as threshing , irrigation etc. This is made out of fine grade of cast iron and heat treated and precision manufactured gears. Wooden boxes , weight is between the 30-40 kg per piece depending on the tractors of the company and the dimension is also depend on company such as for Ford and Eicher it is different & foar massey forguen it is different.