AUEAR, 4 Pack Plastic Fingernail Cleaning Brush Double-Sided Hand Nail Toe Scrubber for Men Women

The single brush row designed for cleaning under nails is best slightly shortened by cutting with sharp nail clipper or sharp scissors (I use titanium blade scissors). (Just don’t use any clippers that were used on fungus nails.) Brush heads are tighter at the root of the brushes where they are tied in with tiny metal wires. Shorten a little, see if it’s enough to get under fingernail without brushes bending too much and then shorten as needed. To stop root of multiple-rows brushes from turning yellow from the metal wire, rinse both sides of the nail brush and shake out excess water, store with the multiple-rows side facing down on a soap tray that has raised strips or dots to elevate the soap. That lets water drains best from the brush roots.