Hy-Lite Products, Inc. now offers round top and arch top acrylic block windows. The windows are preassembled and ready to install. They are available in either 6" or 8" blocks and come with a thermally broken aluminum frame. Three different block patterns, wave, frosted wave and cross rib, are available. The windows are available in four different frame colors including white, tan, bronze and clear anodized. All of the windows come with nailing fins and install just like standard pane windows.