Excellent material, and very high quality. All the bands are incredibly strong each with individual clips for a quick change in tension between workouts. Used as a replacement to free weights and provide similar results, they can be transported in a suitcase and use on holiday if you are keen! They take up very little space too when storing them at home.
The attachments provided work well. I was sceptical at first, but you can literally attach to your doors and start working different area's of body fast and effectively. There is a DVD provided though, needs updating as it looks like a fitness DVD from the early 90's.
The only issue I have with this product is that the handle clips can get in the way of particular workouts required overhead, Apart from that, this is a great product. Very happy.