What's the difference between tubing mascara and regular mascara?

Tubing mascaras (like the tarte tartelette tubing pick) wrap each lash in a polymer 'tube' that slides off with warm water rather than smudging or flaking, which is why fans favor them for sensitive eyes and smudge-proof wear. Traditional formulas use waxes and pigments that typically require an oil-based or waterproof remover.