Extra sharp grass clippers blade made of tempered hardened steel Rotating swivel head locks into place for the optimal angle for hand grass shears Safety lock keeps grass scissors blade closed when not in use Auto spring makes for quicker trimmer and less hand fatigue Lifetime warranty Edward Tools Grass Shears are the ultimate precision hand grass shears on the market. With the versatile rotating swivel these shears can be adjusted to 3 different angles that lock into place. Made of tempered steel this sharp blade is rust proof and stays sharp longer than your standard grass scissors. When not in use, the grass shear can be locked into place for added safety. Edward Tools Grass Shears come with a lifetime warranty.