Step 1: Use the smallest wrench to loosen the screws on the black disc.
Step 2: Rotate and remove the black disc.
Step 3: Turn the silver knob until the center post can move.
Step 4: Pull up the center post while pressing the button on the bottom of the center post.
Step 5: Attach the black disc to the short center post, then press the short center post down to fit it onto the tripod.
Step 6: Rotate the silver knob to secure the short center post.
Step 1: Turn the silver knob until the center post can move.
Step 2: Pull up the center post while pressing the button on the bottom of the center post.
Step 3: Flip the center post, then press the center post up to fit it onto the tripod.
Step 4: Rotate the silver knob to secure the center post.