Here’s a full set of Rear Radius Arm Bushes (x4) for the following models from Aston Martin -

ASTON MARTIN

Aston Martin DB7    (1994- 2004)

These bushes fit in either end of the the Rear Radius arm (Larger bush goes at the front end - See picture).

The Radius arm stops the rear wheel moving backwards and forwards.

Here is a car set, two large bushes and two small bushes.