Ardell  Seamless Underlash Extensions Wispies contains everything you need to  achieve salon-level extension perfection at home. 36 knot-free, patented  clusters for seamless blending, 10-day professional-strength black bond  & clear seal, no-drip remover, and a contoured precision  applicator. Build volume & length for a look that’s subtle or  standout. 4 lengths let you customize to your eye shape from inner to  outer corner. Flexible wear, 1 day to 10—it’s up to you.oy up to 10 days of beautifully defined eyes with the durable Bond & Seal technology, ideal for long-lasting wear.