The new Quick-Changing Roller Ski Tips by KV+ allow you to switch between snow and asphalt training in a few seconds. Never struggle with glue again! How it works: All you need to do to convert your poles to quick-changing baskets/tips is to remove your old glued baskets, put on locking nuts*, glue on plastic ferrules* and you’re all set! Plastic ferrules come in two sizes, for the most common shaft diameters: 8.5 and 10 mm. All baskets and roller ski tips regardless of their colour and outer size have the same threads size. So one set of baskets or tips can be shared between different types of poles, for example: racing (8–8.5 mm) and training (9.5–10 mm) poles. Just install respective ferrules on each pair of poles. And the best thing is: we made our system compatible with ANY(!) poles, so it can be installed on any 8–8.5 and 9.5–10 mm poles. Get a full set of baskets, tips and installation nuts/ferrules, or buy them separately and make your own kit! * Nuts and ferrules sold separately. See installation instructions for details.