Versatile Brow Mapping String Ultra-fine brow mapping string, ideal for elegant, crisp lines and ultimate precision. Dyed with a brown hypoallergenic cosmetic grade pigment, that creates perfect finished brows, without the need for a stencil! Premium Compact Dispenser Made from detoxifying bamboo charcoal, our brow mapping thread is exceptionally durable, disposable and certified safe to use on your client’s skin