C&F Design CF-203 Micro Slit Foam Ultra Midge Threader Lay Magic Fly Sheets on the bottom of three plastic cases to make containers windproof. For pick up, use the magnet on CFA-11(available separately) Comes with 2 Ultra Midge Threaders.?CF-604/S? Dimensions: W:124 H:94 D:32 (mm)