Mop Head

Update: 1/12/17
After using it for a number of times, guess there's some issue which need improved on the next version:

1) The mob string keep tangle with the two bolt head..
2) Using the mob is fine, just that maybe the base is too round, it tends to rollover... will need to add teeth or grip so that it can use it as a rubbing tools.
3) The new design will probably be screwed type rather than bolt ... will see.

Update: 10/9/17
The mop head attachment was broken, so I recreate a mop h