Specification: Item Type: Bow Tattoo Line Ruler Material: Aluminum, cotton thread Leveling Scale Liquid: 1ml 0.04oz Size: Approx. Unfold: 23 x 7cm 9.1 x 2.8in Fold: 10.5 x 8cm 4.1 x 3.1in Usage: For novice, tattoo artists design the shape of eyebrows for customers Package List: 1 x Ruler 1 x Thread 1 x Storage BoxEasy Installation: Unlike traditional bow rulers, our brow mapping kit features a locking wire device at both ends, making it easier to install. This user-friendly design enhances convenience and saves time during application. Customizable Fit: Our brow tool can be tailored to each client's unique face shape and size. The middle screw allows for repeated use without compromising its shape, ensuring a personalized and comfortable experience. Hygienic and Safe: The replaceable cotton thread used in our eyebrow mapping kit is not only gentle on the skin but also more hygienic and safe for both the artist and clients. This provides peace of mind during the microblading process. Convenient Inked Mapping Strings: Our microblading supplies includes inked mapping strings, eliminating the need for multiple accessories and preventing any mess on your workspace. This feature saves time and enhances efficiency. Accuracy and Symmetry: Our brow mapping string boasts an industrial design that ensures accurate measurements. With this tool, you can effortlessly create symmetrical and beautiful brow shapes, allowing for precise microblading results.