POSITIVE: Sporty and stylish, it is also. By 2 straps that are pushed through between seat and backrest and fixed to the seat back by a respective plastic mask, it also keeps surprisingly good! It does not look in the least as it was fixed! Top! Install time: 2 min.
NEGATIVE: The medical-relieving factor for the cross and spine I lack! While I sit a trace cozy but medical care is there for me no recognizable.
Honest opinion: 3 out of 5!