I have to say, of all the systems I've used, this seems to be the easiest to get and maintain a silly sharp edge.
I have three of these kits for sale here, I may have more strops soon but can't promise.
The kit consists of a Lansky fold a vee, a hard wood backed leather strop and a block of Starkie blue to strop the edge once you're done.
The kit is £35 plus post, the centre one with the bark in the centre from when it was a tree is heaviest, followed by the right hand one (both of which are Sycamore) and the left is ash and quite light.
These are done, ready and can be posted as soon as payment is received.