Tubular Levers are different from cylindrical only because of the way you lock your door. While one pushed the button to lock the door for Cylindrical Levers, the Tubular require you to purposefully turn the little dial to lock and unlock.
This lock in not recommended for those having arthritis or having "full" fingers. You will find it cumbersome. But for security wise...it has an anvantage over the Cylindrical Lever.
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