The USA Lab Thermal Shield allows for superior quality at an affordable price. The shield protects your distillation by providing excellent insulation, keeping your temperatures inside your glass where they need to be.  Thermal Shield SpecificationsInner White Fiber Material96%+Si02 Glass Fiber Fabric ClothInner White Fiber Temperature Rating650°COuter Black Fiber MaterialTwo-Sided Liquid Silicone Cloth with Glass FiberOuter Black Temperature Rating400°C5L Dimensions34.5" L x 14.5" H10L Dimensions40.5" L x 19.5" H20L Dimensions46" L x 21" H50L Dimensions56" L x 28.5" H100L Dimensions72" L x 34.5" H  For Technical Support, Questions, or Other Issues Please Email or Call Us!