thanks for the reply but I'm not talking glue on clip on type differences, I'm talking two completely different cross sections. Round with a hole and flat with a "slit" cross sections. I don't know which has clips and which is mitered of these either. they are probably the best rubber around, made in USA. Their web info is awful, doesn't say clip or mitered and they even show the wrong door for 56, they used their 47-55 door picture I guess. that's not professional. make a proper drawing for 55-59 doors for your world wide web site for gosh sake. and give some pertinent info.