1APPLICABLE POLES: This leveling tool is suitable round and square poles with a diameter of 11.25in, with top adjustable small bottle, sensitivity of 40 minutes. 2PROTECTION COVER: This adjustable grade bubble level is equipped with a protection cover to effectively prevent scratches and wear, ensuring accurate viewing. 3ALUMINUM MATERIAL: The rod bubble level is made of excellent aluminum material, corrosion resistance and oxidation resistance, can be used in various environments. 4STRAP DESIGN: The pole leveling tool is designed with strap, which can be easily tied to the pole and is convenient to move, stable and reliable. 5APPLICABLE SCENE: This tool is suitable for home and woodworking leveling work, such as measuring space distance, leveling mechanical equipment, etc. 1 x Pole Bubble Level