1. Improved efficiency: The vibrating ruler with lithium battery is specially designed to enhance concrete scraping tasks, boosting work efficiency by 10 times. Its unique mechanism can the need for ten workers, significantly reducing costs and labor. 2. Powerful frequency vibration: Equipped with a frequency vibration motor, this ruler delivers strong performance. Its pure copper construction ensures robust vibrations, while the sealed waterproof and dustproof design, along with efficient aluminum alloy, enables rapid heat dissipation. 3. Extended battery life: Featuring a capacity 6000 mAh lithium battery, this ruler operates for several hours without frequent recharging. 4. Stable triangular design: The ruler incorporates a reliable triangular fixed structure that remains sturdy and unaffected by frequency vibrations. Additionally, it facilitates easy leveling and ensures horizontal stability.