Tenebraex has designed the world's most trusted flip cover for virtually any optical device. Tenebraex flip covers provide the ultimate in simple, proven protection for your scope, optic, or camera system. Millions of covers are in active use by the world's most discerning clients, protecting billions of dollars worth of equipment. Protect your investment with Tenebræx TT (Tactical Tough) Flip Covers. Fully rotating and quick to open. These covers are designed to be used in the harshest environments. Demand nothing but the best!