Gnomish Rocket Boots

Gnomish Rocket Boots provide a 60% increase in run speed for a random amount of time up to 20 seconds. If they fail you will lose control of your movement for a random amount of time and the boots will move you in random directions.

Source
Gnomish Rocket Boots are crafted by Engineers who have specialized in Gnome Engineering, and have a minimum skill level of 225.

The recipe for this item can be learned from a Gnome Engineering trainer.

Background
Annoyed by the goblins' success with their powerful rocket boots, the gnomes set out to build a better, more stable version. They succeeded, although high cost often drives most buyers to the goblin variety instead. Gnomish rocket boots are comprised entirely of layered metal, providing enhanced protection in the event of an accident. Once activated, tiny wheels extend from the soles and powerful jets situated around the heel propel the wearer forward at tremendous speeds. What's more, the wearer retains complete maneuvering control, even while zipping around the battlefield. It is possible for rocket boots to malfunction, and coming apart at the sole; but at least gnomish rocket boots never explode!