The Great Neck 3-Piece Extension Set with Wobble Extension features all chrome vanadium steel pieces for strength and durability and are chrome plated to resist rust. Set includes: 5-Inch and 10-Inch extensions; 2-Inch wobble extension. Durable chrome plating for easy clean up, professional look and a non-rusting finish. Knurled grip for positive turning. Covered by GreatNeck limited lifetime warranty. GreatNeck has been a hand tool manufacturer since 1919. Our tool brands strive to bring value in design and function. We stand behind our brands and offer an industry-leading lifetime tool promise on workmanship and materials.