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1) Use an 8MM L-Shaped Allen Wrench to take off bolts from the old seat pad (Figure A)
2) Take out the boltsand disc plastic interior. (Figure B).
3) Remove the old round pad. (Figure C).
4) Replace the new round pad, then assemble the disc plastic interior and fix the bolt with
L-Shaped Allen Wrench(Figure D)
Figure A Figure B
Figure C Figure D