Yes, it's a good idea to use a stylus on your touchscreen, to avoid all those greasy marks and to point with a little more precision than I can achieve with my blobby fingers.
Yes, it's a decently made stylus, with a metal body and clip, and a soft rubber tip at the business end - looks smart and works perfectly well.
Why is it £12.99 though ??....... now if it came with replaceable rubber tips I might see the point !
I bought it because it went with the Kindle Fire HD and the black Kindle case I bought, but actually I could just have used my cheap and cheerful Blackberry Torch plastic stylus (£1.95 for two on Amazon) which also has an integral clip to attach to the Kindle cover/your shirt pocket