Long-wearing. Transfer-resistant. Weatherproof.Tom Ford Beauty introduces 24H Emotionproof Liner where luxury beauty meets high performance. A 24 hour wear, waterproof retractable eyeliner that withstands the demands of modern day life from hot, humid weather to a tough workout, this eyeliner won't budge or disappoint.How to UseIf desired, gently sharpen pencil lead using the built-in sharpener. Glide liner along the lash line.