A COMPLETE BALL SHOULD BE USED AS A KINEMATIC MOUNT WHENEVER POSSIBLE. IT IS THE LOWEST COST AND HIGHEST-QUALITY PRODUCT. IN MANY APPLICATIONS, THEY CAN BE STAKED OR PRESS-FIT INTO PLACE. IN LOW STRESS APPLICATIONS, THE BALL CAN BE GLUED INTO THE ASSEMBLY. WHEN GLUING A BALL INTO AN ASSEMBLY, THE CLEANLINESS OF THE SURFACES IS OF THE GREATEST IMPORTANCE.