■ Bottom Ball Button Compatible with model: Orbit CF – 40 #. 42/ – 48cf ACB, CF – 40 #. 42cf – ACB (1.5 Size/36 degree/45 degree Standard bearings) ■ 1.5 flute 36 °/45 °※ depending on the color may vary depending on the type of display, actual product may vary slightly from the product image. This listing for the specification, improved the design of the logo, etc., may be altered. In addition, the manufacturers to reveal the answer your questions about the dimension and a personalized fit and you are not the actual product. Please understand and thank you.