75-2412 Features: -Ratchet Wrench Extension Bar Set.-4 Pieces super heavy duty set of extension bars.-Spring loaded attachment ball for quick, easy extension.-Great for auto and home remodeling use.-High quality product.-Measure: 0.5 x 3 , 0.5" x 8", 0.5" x 10". Dimensions: -Dimensions: 12.8" H x 4.5" W x 1.4" D.