YN Young Nails Natural Tips 50 Pack Refill – Quarter Well Available Sizes: #01-#10 The unique difference in Young Nails tips is that on ours we have created a precise contact area to give you an easier application and significantly smoother, faster blending. Our tips also have straight sidewalls – from cuticle to free edge – and a consistent c-curve for both a perfect shape and added strength. All tips are made of 100% ABS plastic.