MXLR Adjustable Alloy Servo Arm (25T) Yokomo BD11 M3 x 6mm threads allow M3 x 6mm threads allow easy installation on most all of today’s popular bodies Every sticker sheet is covered by high quality matte laminate to protect the print from UV light and chemical cleaners As different manufacturers using different tolerances for the production of their splines (even they are the same teeth numbers) it's rather impossible to create a perfect fit servo arm without the use of a clamping design Strength of the material and even more the height from the ball stud to the servo spline are key points for the best performance