CDC & Elk Dun Size 12
Excellent dry fly for tenkara anglers. The delta shape makes it easy to cast with a light line. The hollow hair and CDC allow it to float well. It is a very effective fly, particularly on the high-gradient streams (where tenkara excels), which tend to be relatively infertile and have few mayfly hatches.
The flies were purchased in a close-out sale at Hareline Dubbin' so I am able to price them lower than you could find at just about any fly shop. Unlike the other flies on TenBum, these were surely imported and were probably tied by someone who has never fished.
It is a good pattern, though, and a good price, and will probably draw at least one strike before it falls apart. That one strike could be the fish of the trip, though.