These suspension bearing removal "cups" are sized according to bearing Outside Diameter. Many of these individual cups cover several bearing sizes (please see the application chart in the accompanying pictures). The new compact design provides the smallest possible profile in order to fit into the increasingly tight spaces inside of suspension bearing linkages. These bearing cups are also used to press the new bearings into place. Manufactured in the USA. These bearing cups are part of the "Modular Series" of suspension bearing tools by Real World Cycling.