4D lash extensions for an instant transformation! Ultra-fine fibre extensions technology: Containing 0.015mm invisible fibres, one brush lengthens lashes by 50%, superimposed brushes instantly thicken lashes by 4 times, lashes are clearly defined without clumping, and easily have a sunflower-like voluminous effect. Dual-action brush head black technology: Silicone teeth: comb through lashes, removing excess cream and avoiding fly-aways; Dense bristles: evenly wraps each lash, from root to tip, lengthens and thickens in one step. All-day hold, waterproof and smudge-proof. Triple-locking protective film: Waterproof film: storm level waterproof, swimming, tears, rain, no makeup; Anti-oil film: adsorption of grease, oil eyelids 8 hours zero smudge, fresh around the eyes without lumps; Anti-friction film: rubbing the eyes, wearing a mask, embracing without rubbing the flowers, holding makeup all day without pressure. Laboratory test: After 40 high temperature + 90% humidity environment test, mascara without collapse, no smudging, after removing makeup eyelashes are still smooth. Curl and define, lash curvature long-lasting online Memory styling formula: 3 seconds after brushing, eyelash curling arc maintained for 12 hours, without the need for eyelash curlers to shape, easy to create natural curling effect. Wide-angle curl design: The curvature of the brush head fits the Asian eye shape, easily covering the eyelashes at the beginning and end of the eye, and lifting the eyelashes evenly from the root to the tip.