The ch hanson automatic locking mixed jaw pliers sets contain 1 of each of the following needle nose pliers 180mm 7in and curved jaw pliers 250mm 10in the pliers are made from chrome molybdenum steel for excellent durability the patented design means that they can automatically lock on any size without adjusting the set forget feature enables the pliers to be set at a desired tip pressure for the job slight to extreme and the jaws adjust automatically the handles are 15 thinner for easier