ITEM NAME:Double Side Nail Art Polish Strip Sanding Nail File Buffer Grits Nail Tool MO Double-sided. Lightly polishing for several times with the frosted side, and then rub with the smooth side until the nail lusters. It can also be used for crystal nail polish. Item Type: Burnishing stick Function: Polishing Material: EVA Size: 17.8*1.9*0.8cm.It can also be used for crystal nail polish. Item Type: Burnishing stick. 1 x Double-Sided Burnishing stick. Material: EVA.