The new MK2 design effectively flips the strummer, so that the folded end, more like fingertips than a sewn end, is now the strumming end. This has two main benefits, it means that the strummers will last longer because the stitches shouldn't wear as much and the sound is truer to a fingered glissando. The strap has not been changed other than standardising the length at 66" tip to tip. Longer/shorter straps are available by request. Obviously, if you want a strap longer than the average cow, then I would need to sew two together at additional cost.
Note, the new strummers do not come with a brown leather pouch, as the Mk1s did.
The price is £20 for two strummers sewn onto one strap, including postage to mainland UK.