Manufactured from Chrome Vanadium steel. Super Long and slender shafts with thick ring heads provide great grip on nut heads. Mirror polished finish. Ranging in sizes from 8mm to 19mm. Sizes included: 8 x 10mm (Approx Length: 234mm), 11 x 13mm (Approx Length: 329mm), 14 x 15mm (Approx Length: 369mm), 16 x 17mm (Approx Length: 409mm), 18 x 19mm (Approx Length: 409mm). Includes a canvas pouch. Polished finish.