A fairly high visible effective mayfly spinner.
Rene Harrop's CDC Para Spinner - Gray Drake
Rene Harrop's CDC Spinner - Callibaetis - 14 - House of Fly
CDC Biot Comparadun - Tailwater Junkie
Wings with CDC, Global FlyFisher
CDC Biot Rusty Para Spinner #16-18 – Fly Fisher's Place
Rene Harrop's CDC Para Spinner - Gray Olive - 18 - House of Fly
Spinner Fly Patterns – West Branch Angler
Mayfly Patterns for Fly Fishing - The Fly Project
CDC Parachute Spinner - Trico
CDC Biot Rusty Para Spinner #16-18 – Fly Fisher's Place
CDC Para-Spinner - Blue Ribbon Flies