The QuickGrips system includes an alloy rotor which is fitted inside your throttle assembly, and an alloy clamp which mounts on the clutch side of your handlebar. These components remain on the bike once fitted, and attach mechanically to the grips themselves, which are made of alloy with rubber bonded to them.
 

To switch grips you simply slacken off your throttle assembly and the clutch-side clamp, slide them to the ends of the bars and then detach the grips in a sideways direction. New grips can then be attached in the same way, slid back into place and tightened up again.
The switching process can be completed in well under 30 seconds and requires only an allen key. For more explanation and diagrams please see the How To section of this site.
 

When a pair of QuickGrips (eventually) wears out, simply replace the two grips with new ones - the rubber/alloy tube component is replaceable. Replacement grips are available for £19.95 per pair.