Anti-Climb Fence Spikes 6 Pcs (9.8x1.8x3.4in), Heavy Duty Home & Garden Security, Rust-Proof Outdoor Deterrent for Fences, Walls & Sheds, Easy Installation - Black

I used this to keep the crooks away. Put in my tree in case they try to use the tree to climb over the adjacent fence. Place them around my yard in hidden places.

These spikes are very sharp - I put a warning sign up next to the fence. They will probably bend however if something like a bear attempts to get over the fence. I don't know about the rust resistance since it hasn't rained since I installed them.

This is not for larger critters (animals) as it bends easily, not for smaller animals or birds as they fit between the spikes. It might be a visual deterrent for humans? They are well made, include gloves (which are useless) and screws that are too short for anything. 2mm isn't thick enough to serve as a true anti-climb spike, if they were thicker they would work well.

Awesome

Wanted to love these, but the tap screws that they send are two shorts to drill in or hammering whether you're doing it from the top or the side there's only one hole in the Middle with two on the end half holes am I supposed to join these pieces of iron together by this short miniature screw and two connecting pieces that don't actually connect and they'll just spin around and you pull them straight out so if you're using them for home defense against people they're just going to pull them right out. No instructions, I mean it's self-explanatory but I'm trying to find some instructions to why they think this would work at all and how you can even get them in without stabbing yourself tried it with a long drill bit try it with a hammer not worth the money for me to have to go out and buy screws and other things to make that stay down in the fence

Sharp. Very sharp! Spikes are made out of fairly thick steel. See my photos with the quarters in order to show the thickness of the spikes. Spikes cannot be easily easily bent by hand. If you are trying to keep cats out of your yard then these won't work as the spikes are spaced too far apart which allows cats feet to step in between the spikes. These spikes are a good deterrent to keep people from climbing over your fence.

These spiky dudes are supposed to be like a metal welcome mat (but the unwelcome kind) for fences and walls. They come in a pack of six and are sold as both a security measure and a decoration. These MSJSZP Fence Spikes are a cheap way to maybe add a little security to your fence. But let's be real, they're not Fort Knox. If you're super worried about security, you might want to look into cameras or alarms. If you just want a little deterrence and like a bit of an industrial look, the MSJSZP Fence Spikes might be alright.

Sturdy enough, but not enough. Look how short and narrow these are. Yes, that says 3/4ths of an inch wide. When trying to cover enough space on a 2x4, you burn through an entire 'box' of six in just two feet. The critters just tip toe around the spikes. The spikes aren't tall enough to even touch the belly of the little thieves that climb my fence. You money is better spent else where to stop animals.