bike seat for child...b-one model... (Grinshill SY4)

...hello...
...have a b-one bike seat that is complete...
...suitable for babies once they can keep their head up by themselves up to about 6 years of age...
...adjustable feet rests...
...clamp attaches to frame (seat tube) with 4 bolts that are included and then it is quick release by pressing button on clamp to remove seat if needed...
...mike...