They're a nice shape & they're easy to install, easy to take apart for cleaning too. They're not see through on the frame & are frosted plastic which is a shame as the old see through ones were nicer & had better visibility for the cat. The locks work fine if your cat isn't the type to ram the cat flap when it's locked which my cats do which makes the locks fly off. It doesn't break them & they can be clipped back on but it doesn't stop the cat from getting out. The magnets aren't strong enough & the door flaps open continually in strong winds. Don't over tighten the screws to avoid cracking the plastic ! Nice design but there's room for improvement.