Prikka Strip - 500 x 45mm - Brown - Pack of 8

They seem to do the job.

I have had some of these for many years and stick them to the top of my wall using an MS polymer adhesive. I think only one has come adrift. I enlarge the screw holes, roughen the underside and keep weighted down with a brick or two. I have read a review in which one reviewer claims to have seen a cat walking on the spikes but have never seen this. I am however using a double row in places. I only get occasional visits from cats. I would have given 5 stars if I could confirm that cats do not walk on spikes. The spikkes are certainly durable

Great security product

Purchased for my new home. The garden backs on to a car park and has the potential for the less salubrious of society to enter my garden, but not with these along the top of the fence. Easy to apply with weatherproof adhesive. Only thing could be improved is they should be available in larger lengths too.