These brows are water-based brow stickers - simply dip water & stick to wear instantly to create 4D & hair-like brow strands with desirable brow shape. No professional makeup skill is required! And once it sticks, it becomes waterproof, smudge-proof with long lasting result up to 3 days! NO NEED SHAVE OFF! Simply apply directly on top of your eyebrows. Perfectly solve problem of sparse or light brows as these stick-on brows seamlessly blend with your own brows, so no one discovers your little secret!