I was looking for a sturdy, taller exercise pen for my  dogs that I raise that have a penchant for climbing and this fits the bill perfectly. Very easy to assemble, attractive to look at and comes in 3 different heights, the tallest option being 48" which so far is working well containing the Brussels Griffons that are very adept at scaling walls. Since this is a recent acquisition, only time will tell as to how well this pen holds up but if it's anything like the other heavy duty metal pen I have, made by Precision Pets which is a little shorter and fine for puppies, I believe it will stand the test of time. They do look very similar and the shorter pen after 2 years in our harsh winters of Upstate NY still looks like new.