Premier Blackout Arch – Custom Light Blocking for Arched Windows Say goodbye to hard-to-cover curved windows and hello to total privacy and light control with our Premier Blackout Arch shades from Select Blinds. Specifically designed for stationary arched or half-moon windows, these blackout honeycomb shades are an elegant and energy-efficient solution that brings form and function together beautifully. Whether you’re blocking early morning light in the bedroom or reducing heat gain in sun-soaked living areas, these shades deliver a tailored, polished look with complete coverage.