Create Beautiful Nails Every Time. If you wouldlike to polish nails with no more fuss muss, and mess that comes with having to hold the bottle, risky bottle placement or spilled polish, Nail-21 is for you. Nail-21 is ergonomic and also helps eliminate fatigue because it provides a tip-proof holder that works on any flat surface. This is a "Must Have" Tool.  Contact us for more information about Nail-21.