Tritech Research offers the most elegant fly pad design available. With completely solid construction, these fly pads are sturdy and will provide quite an even flow of CO2 to keep your flies aenesthetised during microscopic examination. With a large surface area of 8.9 x 12.7 cm (3.5 x 5.0 in.), the pads are less than 1 cm thick, making them the most convenient to work with under the microscope.