100% brand new and high quality5 Pcs Screw Extractor Set. Easy to use & Anti clockwise twist design.Extractors have round flutes.Removes broken screws， bolts， and studs without damaging bolt or hole threads.Material: Hard alloy steel (Tempered chrome molybdenum steel)Sizes: 1/8"-1/4" (3mm-6mm) 1/4"-5/16" (6mm-8mm) 5/16"-7/16" (8mm-11mm) 7/16"-9/16" (11mm-14mm) 9/16"-3/4" (14mm-19mm)Package includes:5pc Screw Extractor Set (Includes a Plastic Storage Case)Note: Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thanks for your understanding.