Bugaboo Snow Wheels

We are off to the Swiss Alps in a couple of days. I have therefore snow-proofed my Bugaboo with these snow wheels:

They replace the small front wheels of the Bugaboo Cameleon, turning it into a real 4WD! They are available on the Bugaboo website (http://www.bugaboo.com/product?id=6827) but I got mine from Lesters Nurseryworld (http://www.lesters-nurseryworld.co.uk/) who delivered them within 2 days.