* The Extension Bar can be added between a ratchet and socket to extend the range of the socket.* Made with heat-treated Chrome-Vanadium steel construction for long-life durability.* Mirror-chrome finish is corrosion resistant.* Spring loaded detent ball ensures socket is secured.* Perfect size to be included in a emergency tool or tire repair tool.Specifications:* Material: Chrome-Vanadium Steel (Cr-v)* Finish: Mirror-chrome plated* Fit for: 3/8" Square Socket* Size: 250 x 52 x 12mm / 9.84 x 2.08 x 0.47-inch (L*W*H)Package Content:* 1 x Extension Bar