"a great piece of kit, instructions not great but once i had got my head round the instructions it went well. My skillset is DIY and not extensive. i used it to convert two pine cupboard doors to bifold doors. most important thing is to ensure square framing and square positioning of teh fixing points. need to do a bit of adjustment but once it was all in place it was a good piece of kit.... have seen you can get it elsewhere for less........so shop around. other comment was that i ordered it online for delivery to a local store, went to collect it but is hadn't been included in their delivery so had to wait until Monday as it was due on a saturday"