Instruct: Classify a given review as either positive or negative.
Query: Flap not replaceable & doesn't last

The frame is very solid, but that's about it. The latch on the security plate broke off day 1. The flap lasted several months before it started to come apart at the top "hinge". I slowed this down by duct taping it, but eventually the flap completely detached. The lame thing is the flap is not replaceable - you have to buy the whole pet door. So now I'm stuck with a big hole in my door. Either I can buy this again and have it rip again in a few months, try in vain to find another brand pet door that fits the same hole in my door or buy a whole new door and a new pet door.