These generic runners measure approximately 34" long by 1 1/2" thick by 1 1/2" wide. They are suitable to convert or repair any other chair.
The runners come with holes pre-drilled to fit the Strandmon wingback chair only. PLEASE NOTE that Strandmons purchased after April 2015 have subtle changes and this hack may result in the chair leaning too far backwards. The solution for this is the switch the legs on the chair around ie. put the front legs on the back of the chair and the back legs on the front, then install the rockers.