Green Mountain Vista UV Blocking Sun Screen Roller Shade, 48-Inch by 72-Inch, White 70% Pvc - 30% Polyester Imported Repels heat and cold (energy efficient) and blocks UV, ability to repel excessive solar heat is immediately noticed when installed Allows visibility out while repelling heat or cold Continuous chain loop retractor for smooth fluid motion up or down; Inside, outside or ceiling mount Spot clean or vacuum 70% PVC - 30% Polyester