I bought this because it isnt always easy to get to a real shop to match colours, especially with lockdowns, and despite best efforts, colours on screen can look quite different from the real thing. (I tried to choose colours based on online shop photos though wasnt certain, so ordered this. When it arrived the colours I needed were a fair bit different to this I would have bought based on online photos.)It does cost a bit but the initial outlay will be offset by the savings from not purchasing the wrong colours. Now I can match threads to my quilt at home and order them online and know Im getting the perfect colour. No more quiltless lockdowns for me!