This Spectra Precision GL622N Rotary Dual Grade Laser Level is a reliable and efficient tool for any construction site. The laser level is designed with a rotary mechanism that allows for easy adjustment of the beam angle. It comes with an HL760 receiver that allows for quick and easy measurement.The laser level is made by Spectra, a trusted brand in the industry. It is ideal for both professionals and DIY enthusiasts. This product is perfect for those looking for a reliable and accurate rotary laser level.