1. Ideal Gift The contour ruler is great for construction professionals, fathers and those who need precise leveling on the job. 2. Stable ABS Base This contour ruler features an enlarged ABS base that provides maximum tile stability, preventing any unwanted movement during installation and ensuring even tile alignment. 3. and The height ruler is made of sturdy aluminum alloy body and wearresistant material, which is not easy to be damaged and fallproof. The height tape is lightweight and easy to carry, ensuring accurate measurements, ideal for construction sites. 4. Unique Design Our height ruler is equipped with an independent bubble function to help you easily and accurately locate precise horizontal heights. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.