Good quality, as advertised. I used this to mount my OS MAX 40LA on a Phoenix Models High Wing Trainer. It fit without modifying the firewall, and the engine mounted to it easily. Highly recommend. I may downsize the engine to an OS 25 and all I will have to do is loosen the screws going through the firewall, adjust the engine mount in a bit, tighten down, and bolt the new engine down to the mount. Easy-peasey!!