Just what we needed to add on to our other set of cat perch that didn't take up the entire height of our wall, so it was perfect and the flat perches are awesome, very wide and makes my cat feel safe enough to climb and lay on. Our only issue was mounting them onto the wall studs, because we live in an older building its harder to find studs and there aren't very many. So we just mounted the pieces on the wall with or without the studs in order to get the desired layout/ paths that she can walk on and hope for the best, so far so good. She is using it and hopefully some day will climb to the highest perch, she is a scaredy cat.