The Blue Spot 3 PCE flexible extension bar set is manufactured from flexible spring steel with chrome vanadium sockets for increased durability the unique flexible design makes it easy to tighten and loosen nuts that are off centre and in hard to access areas where a regular extension bar will not fit. The set comprises 1/4"-3/8"-1/2" bars on a handy plastic storage hanging rack. Manufactured from chrome vanadium for increased durability Sizes 1/4", 3/8" and 1/2" Unique flexible design Tighten and loosen nuts that are off centre Easy to reach hard to access areas Handy plastic storage hanging rack PACKAGE CONTENTS Sizes 1/4" 150mm(6"), 3/8" 200mm(8"), 1/2" 250mm(10").