Manufactured from chrome vanadium for increased durability and a long life. Chrome vanadium is made up of various alloys giving it greater hardness and strength which means the set is suitable for heavy duty tasks Contoured soft grips for increased comfort and to reduce hand fatigue Storage rack that can be wall mounted so you can quickly and easily find the size you are looking for The keys are double sided with one long part and one short, Weight: 0.220462262 pounds, Manufacturer: Blue Spot Tools