Item type Eyebrow line marker ruler for precise eyebrow mapping and shaping. Why this tool helps Accurate positioning: Arch design copies an industrial level ruler with a horizontal observation window in the center for consistent, symmetrical eyebrow placement. Replaceable, hygienic marking: Comes with cotton thread that can be changed for clean, repeatable markings. Durable and reusable: Solid aluminium alloy body resists deformation and stays stable when designing different eyebrow styles. Easy ink control: Transparent dropper delivers small amounts of liquid to the sponge strip to reduce mess and prevent overapplication. Reliable sponge absorption: Included sponge strips hold liquid well for even ink transfer to the thread. Key features and specifications Material: Aluminium alloy body, cotton thread, sponge strips. Level ruler liquid capacity: 0.07 ml. Ruler size: Approx. 22.5 x 5 cm. Designed for precise horizontal observation and symmetrical alignment. Suitable for beginners and professional artists; can be used with practice masks and on clients. What is in the package 1 x Arch ruler 1 x Thread coil 1 x Dropper 6 x Sponge strips How it works in practice Load a sponge strip into the holder, use the dropper to add a small amount of liquid to the sponge, and wrap the cotton thread for clear, thin guideline marks. Place the arch ruler on the face, use the horizontal observation device to align the center point, and mark starting, arch, and tail points for balanced shaping. Remove and the thread between models or clients to keep work hygienic and repeatable. Practical use scenarios Training and practice: Ideal for students practicing eyebrow design on practice masks or models. Salon and studio work: Use to map and discuss eyebrow options with clients before shaping or microblading. grooming: Helps people at home create consistent, symmetrical brows before trimming or filling. Benefits summary Improves precision and symmetry for all eyebrow types. Reduces errors with controlled ink application and clear alignment. Durable materials and replaceable parts support repeated use and hygienic workflow.