The economy restraining cone, also known as killing cone, offers the same convenience but at a lower price than the other cones. They are built of a lower gauge steel than the other cones but will still help you to kill your birds quickly and bleed them out correctly providing great tasting birds. Made of galvanized steel.
I like this cone. Its made good and seems like it will last a lifetime.
Galvanized killing cone
It got the job done but I would not buy again. Very thin metal, I was planning on building my own but ran out of time they did what they were made to do, but too thin and flimsy I put extra screws in it and had to put an extra board behind it.