Features: Brand new and high quality High-precisions blister assembly: This carbon fiber rod centering rod aluminum black leveling Elements-level high-precisions blister assembly is equipped with a high-precisions blister device. It can help you accurately judge the levelness during installation or adjustment, and ensure that your work is accurate. Carbon fiber material:Made from high-strength carbon fiber material, which is light, durable and corrosion-resistant. The excellent performances of carbon fiber makes the product more stable and reliable. Centering rod designed: Adopts centering rod structure designed, which can provide super support and stability. It can ensure that your work or project keeps accurate orientation and direction during constructions. Black leveling Elements for aluminum parts: Equipped with black leveling Elements for aluminum parts, which not only has elegant appearance, but also can effectively prevent oxidation and corrosion service life. Engineers and architects: This carbon fiber rod centering rod aluminum black leveling Elements-level high-precisions blister assembly is very suitable for engineers and architects. They can use this product for engineering survey, positioning and leveling to ensure the accuracy of the constructions process. Specifications: Material:Aluminum Alloy Color:Black/White Package Includes: 1 Set Level Bubble Bead note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.