The Lumber Lock is a revolutionary breakthrough for all construction and maintenance trades and is especially great for projects around the house that you'd like to do yourself.The Lumber Lock will hold dozens of different lumber shapes and sizes from 5.1cm - 30cm .It keeps lumber from moving and spinning for added speed and safety and it allows you to have both hands free for proper handling of power and hand tools.Your lumber is safely raised above the ground for measuring, cutting, drilling and finishing lumber projects.Lumber Lock is there to serve as an extra pair of hands.