• Keratin hair fibers that blend undetectably with existing hair for a fuller and thicker appearance. • Ideal for men and women who want to conceal thinning hair and hair loss. • The fibers adhere firmly to the hair, resisting rain, wind, and sweat, and remain until the next wash. • Easy application: shake or spray over thinning areas for immediate results. • For best results, apply on clean, dry hair before other styling products. • Product dimensions: 5.1 cm wide, 15.2 cm high, 5.1 cm long. Weight: 0.051 kg.