Whiting Hebert Saddle is good choice for dry fly tiers. Saddle's feathers are about 25-30 cm long, so one feather will last for 1 - 3 dry fly hackles. Most of the feathers fit about hook size #14 dry flies, but there is usually some suitable feathers for slightly smaller and larger flies as well.

The size of the saddle is about 13 cm x 40 cm. There are natural variation in colors, colors in the images are examples.