Main features of ZR2

1. Immediate maneuver to extract the wheels and handle in an easy gliding motion, without any release.
2. The wheels lift up the backpack from the street up to 25 cm, so it will not pick up any dirt.
3. The mechanism is suitable for every height, adjusting automatically for individual, precise fit.
4. The mechanism is applicable to every standard backpack and can be dismantled in a quick, simple way when needed (ie: to wash the material if dirty).
5. The wheels and handle quickly disappear when necessary to carry the backpack on one's shoulders without bothering at all one's back because the wheels stand aside of the bag.
6. The wheels retract into their sleeves, thereby avoiding contact with the person carrying the bag, as well as other persons around (ie: on the bus, train, or subway).
7. The device is made of quality plastics and therefore is not adding relevant weight to the burden.