Precisions Measurement: This right angles clamp features high Precisions design for optimal accuracy in every measurement, ideal for complex stair structures and construction. Lightweight Construction : Made from aluminum alloy, combining lightweight portability with durability, perfect for professional who need long lasting tools. Quick Installation Design : Not require extra tool for fast setup, significantly improving efficiency—ideal for contractors and DIYer enthusiasts handling multiple measurements. Versatile Application : Suitable for not only stair measurements but also square structure tasks, making it a must have for carpentry, metalworkers, and builders. Ergonomic & Secure Operations : Comfortable grip reduces fatigue during extended use, ensuring and ease for detailed measuring tasks., Manufacturer: CUNZJIA