composed of high aspect ratio fibers 26 which are bound in two dimensional arrays such that the height to width ratio of the array preferably approaches one also preferably greater than two fibers are aligned generally parallel in a plane and orthogonal to more than two fibers that are aligned generally parallel in the same plane it is preferred that these high modulus fibers be glass fibers with a tensile strength of 260 000 psi 1 8 gpa and a tensile modulus of approximately 10 million psi 76 gpa and that the fibers be five to twenty micrometers in diameter and preferably ten micrometers in diameter the dimensions of these structures allow for the proper flow without destruction through an injection molding machine and are restricted only by the cost and manufacturing constraints other fibers materials dimensions and array configurations can be used for other applications in injection molding applications the major dimension of the coupled fiber reinforcement structures 22 must always be small enough to pass through all orifices without catastrophic deformation of the coupled fiber reinforcement structures 22 this size limit would not apply to a compression molding system 0019 fig3 depicts a single three dimensional fiber reinforcement structure 32 conforming to the teachings of the current invention fiber reinforcement structure 32 has an aspect ratio of preferably less than five and more preferably approaching one when the fiber reinforcement.