Wheel Balancing consists of distributing the mass within the tyre or wheel (including the rim attached). When unbalanced wheel rotates it causes wobbling, i.e. it leads to vibration of steering or the entire vehicle, and causes ride disturbance in high speed. Unbalanced tyres can also damage the suspensions of cars.
Wheel Alignment : Wheel alignment consists of aligning the angles of (front)wheels of a car, which reduces the steering vibration to minimum, and other benefits reducing long term depreciation of wheels, axel and chassis. Today even tyre manufactures doesn't cover the warranty for misalligned tyres.
Wheel Rim Straightening: Wheel rim straightening is a process of smoothing the bends on wheel rim or alloy wheel. Wheels functions for both rolling, turning, and propelling a vehicle into motion, wheel rims require almost perfect balance and shape. Due to poor road conditions rims gets bend easily.
Nitrogen Inflator : The Basic idea of Nitrogen gas is that it is cooler than compressed air and therefore is useful in any driving conditions. A cooler tyre means less stress on inside walls of tyres on the move, and also there is a very high tendency of a tyre geting burst on a high speed (friction) especially in summers. Nitrogen gas inside your wheels will reduce 90% chances of such accidents, and it could be a life saver.