This set of optional turnbuckles contained of (2 pcs) of aluminum steering tie rods which are upgraded from original 6mm diameter to 9mm diameter, (2 pcs) of aluminum rear supportive tie rods which are upgraded from 6.5mm diameter to 9mm, (1 pcs) of spring steel tie rod upgraded from 4mm diameter to 6mm, they are designed to be adjustable with clockwise and anti-clockwise thread, the thicker diameter makes them stronger and durable to use.