Ryobi green laser level, 360° vertical and horizontal line, intuitive self-leveling with LED indication, ON/OFF switch. Maximum length 82 feet (25m). Class 2, 1mW - Amazon.com
Ryobi AirGrip Vacuum Base Laser Level ELL0001 Case, Manual, Base Included | eBay
RYOBI RBCLLR1 cross line laser red - RYOBI 5133004863 | Klium