The 3-Piece Locking Pliers set includes one 6.5 in. Long Nose, one 7 in. Curved Jaw and one 10 in. Curved Jaw. Locking Pliers provide a hands free operation. They are used as a clamp to hold 2-pieces of material together until they are permanently joined, to hold materials for welding, etc. The locking device also makes it easy to hold odd shaped objects. They are a must have for any professional or Do-It-Yourselfer.