This is an African knobkerrie which has a weighted, rounded ball top. 

These sticks are traditionally made and used in South Africa by the Khoisan people. 

The stick is made from heavy hardwood, strong and perfect for use. 

Measurements;
Length - 94.5cm
Diameter of the top - 8.1cm
Diameter of the shaft under the top - 2.5cm
Weight - 439g
 
Very good condition, some slight use marks consistent with age.