The handle length is not variable. But even as a great man, I'll be fine with it. Cleaning is a very simple process: It has itself to dirt body of his choice, injected by pressure on the trigger cleaner on the floor (range: from the wiper 30 cm) and wipes it. For fresh stains which goes well with dried-less. But somehow is not surprising ...
The device is well designed rather to such acute measures, and it is perfect. Sure you can thus clean his entire apartment, but then makes no more fun ...
One important piece of information that can unfortunately be found neither on the product page still on the product itself: "The pad is washable at 60 degrees Please do not wash with fabric softener or bleach.." (Quoted from the Spontex product page).
Conclusion: An ingenious part, I can recommend.