There are four main differences:

1. First of all it is smaller and much lighter than the B-flat instrument, which means that young people - in fact, all beginners - are not put off by the strain of carrying the weight of the instrument, which is taken entirely on the right-hand thumb. Small fingers can now cover the tone holes and reach the little-finger (pinky) keys more easily.
2. Secondly, it is virtually child-proof and can sustain treatment that would destroy conventional clarinets the body and keywork are made strong resilient material (ABS and Delrin) that lasts indefinitely and survives extremes of temperature. The pads, being made of silicone rubber, are rot-proof and waterproof.
3. Thirdly, the body is moulded in two transverse halves, which are then ultrasonically welded. Undercut tone holes can therefore be incorporated into the design - a first for an injection moulded clarinet. The ability to undercut the tone holes allows the acoustic designer to tune each note more precisely.
4. Finally, the clip-on-and-off keywork allows the teacher or owner to repair or adjust the instrument on the spot and at a small fraction of the cost of a similar repair to the standard clarinet.