I asked my wife what model it was and she said the yellow one.
Many people come in the shop for a part, and when asked the model number, that's what they say. 
And see, I thought they were ALL yellow! but now I see there's a purple on in one of your ads. If I'da realized that I'd probably have looked for that when I bought it.
There is a whole bunch of colours, but depending where you are in the world, not all will be available. I like the all black and silver ones that are very rare in the UK.