This plumb bob is designed with the sawyer in mind! Durable hardwood constructed marker with fashioned leather strap and 2’ retractable clip-release lanyard. The cable is steel and the crayon is bright blue for visibility. Also has a high pitched safety whistle attached. Laser branded with ‘The Art of Felling Timber’ logo. This tool will help you to sight in your tree lean and visibly mark your work plan onto the tree that is being felled.