Transform your existing curtains into 100% blackout curtains with Thermaplus Multi-purpose Blackout Ultimate Curtain Liner. This ready-to-use liner is made with multiple layers of foam to create a hotel-quality blackout environment that provides absolute privacy, dampens sound, and reduces heating and cooling costs. The special technique of bonding foam to each panel is non-toxic, odorless, and energy-efficient. The liner is made of a blend of long-lasting, easy-to-clean, and wrinkle-resistant materials. The package contains one 45" wide panel liner that can be attached or hung with any curtain measuring 40" to 54" in width.