This is the best latch we have come across. You can see and hear it latch, and it seems to work ALL the time. We give ours a squirt of graphite once a year to keep it operating smoothly. The best part is the fact that it can be padlocked, a very necessary thing in these times of pranksters and deviates.

Easy install, nice one hand feature but any animal (or human) can open the gate with a hard push. The design is "springy" and gives under a hard push. Great for some applications but not for horses or livestock.