Heavy duty chrome vanadium steel Precision sized cut for perfect snug fit Comes in short or long armed star key wrench Organizer hinged clip for quick removal of needed wrench Lifetime Warranty Edward Tools Star Key Wrench Set is a hardened chrome steel star screwdriver set with a precision machined heads for a perfect snug fit. This set includes star wrenches in the following sizes: T10 T15 T20 T25 T27 T30 T40 T45 T50. The plastic organizer hinged clip makes for easy removal of needed wrench size. Edward Tools Star Key Wrench Set comes with a lifetime warranty.