I own a 2000 Volkswagen Beetle with grey leather seats. The driver’s side seat had started to unravel along a vertical seam on the side. The split in the seat was about 5 inches long. I had pretty well decided that I was going to have to buy a replacement seat from the salvage yard. I read the ad for Magic Mender though didn’t hold out much hope. But, the price was right.
 
I sewed the seam closed, cleaned the seat thoroughly and then applied the filler compound in several coats. I painted the joint several times feathering out the paint. The repair is quite invisible and is holding up well almost a year later.
 
This kit works amazingly well. It produces an durable, undetectable repair even on large areas. Highly recommended!