Carbon Fiber Square .196 OD x .125 ID x 40 (1)

This is a .196"x.118"x 40" Square Carbon Fiber Tube from Midwest Products. Carbon Fiber Square Tubes provide a round hole in a square tube. Users can fill the square tubes with round Carbon Fiber rods or tubes. They are hollow, therefore lighter than other squares, and offer greater strength than the traditional wood square strip.