All Louver shapes and sizes are made to order from your choice of our stocked sheets of honeycomb material. The most commonly ordered material is for our 2" MR16 Louvers using (1/8" Hex Cell x .125" Thick) in Matte Black. We also carry unfinished aluminum MillBrite finish, although it doesn't dampen glare nearly as well as black. See the list below to get an idea of the material and specifications neded for your application.