26 centering rings in 5 different sizes 8 for BT5 to BT2 4 for BT5 to BT5 8 for BT20 to BT5 2 for BT20 to BT50 - 1 inch lon 4 for BT50 to BT55.
 
Used with permission, copyright ©2022 Estes® Industries LLC. Copyright ©2022 Brey Corp. t/a Hobby Works.®
$6 Flat Rate Shipping. FREE Over $199* Most Orders