1.nail polish block. 2.Material: non-toxic EVA + sand ... Main Specs:Item name: sanding blocks, Manicure set, nail polish block.Item no.: FO-200.Material: EVA or other ... to grind slippery surface nails.More thinner: may at any time to nail surface friction, make produce gloss.Why ... , North America, Japan, and other countries and regions of the world.Our goals: Mutual benefit,Fashional design, Excellent ...