Reduces frame movement in the X axis for screw rod prusa. 2 models, stabilizer 2 uses much less plastic but is almost as strong. Attatches with 5 tie wraps per brace. Use 1 - 4 stabilizers as required. Does not interfere with x carriage on my machine.If you want to learn how to design amazing, functional designs for 3d printing, check out my book, Functional design for 3D printing on Amazon!Print with 30% + infill, 2 perimeters or more.