These are excellent handles for our popular nailbrush. Made by hand from laminated bamboo with a waterproof clear-coat finish, the handles convert our nylon nail brush into a great scrubbing brush for hard-to-reach spots. Choosing between the 9" and 16" lengths is largely a matter of personal preference (and just how hard it is to reach your spots). Both hold the brush firmly enough that even vigorous use won't dislodge it. You'll immediately appreciate how well they work.