Exclusive Features: * The unique design of these reducers allows the lip to pass inside the race allowing hyper movement of the ball. * Material: Steel (Zinc plated for long life) Size Available : please choose from drop down menu We also have high specifications mis-alignment spacers in the same size. Please check our other listings. These mis-alignment spacers are ideal for Rally, Brisca F2, Kitcar, and all forms of motorsports.