FTIHTRY 3-Piece Flexible Socket Extension Bar Set 1/2" 1/4" 3/8" Shaft Drive 10" 8" 6

3Pcs flexible extension set is made of durable chrome-vanadium anvil and anvil-receiver with mirror chrome finish; Heavy-duty wound spring-steel; PVC sleeve., Heavy-duty wound spring-steel provides flexibility to 45-degrees, flex extension works in areas that conventional screwdrivers can't reach., Spring-loaded ball detent on drive head prevent bar from slipping into machinery or any dropping.Square drive radius corners reduce tool and socket wear.Maintains excellent rotational torque-transfer from ratchet to socket., Easy to solve the problem of narrow corner that conventional tools can't reach in auto repair work., Three size: 1/4 (6inch), 3/8 (8inch), and 1/2 (10inch),for maximum versatility is a great complement to any toolbox.