2 double ended sockets fit 4 nut sizes, 17, 19, 21 and 23 mm to cover pretty much any wheel. The length range is 36-51cm, it can give higher leverage and be easily store Made of superior chrome-vanadium steel to make sure you can release and fasten it easily Sturdy, adaptable, Easy to convert the sockets, Weight: 2.3368999772 Pounds, Manufacturer: N\P