Instruct: Classify the given Amazon review into its appropriate rating category
Query: USED THEM FOR 1 WEEK, KEPT TRIPPING OVER THE ...

USED THEM FOR 1 WEEK, KEPT TRIPPING OVER THE CORNERS. EVEN THOGHT I LAYED THEM TO GET FLAT, THEY NEVER REALLY GOT FLAT. I BOUGHT 3 AND ALL 3 HAVE BEEN REMOVED AND THROWN OUT. DISAPOINTED