Clear sockets have a wider mouth (where the stud snaps in) compared to colored sockets.  As a result, clear sockets should not be combined with colored studs.  The wider socket mouth may also affect the way the clear socket fits in the press socket die (for table-top press users only). If the clear socket does not stay in your existing socket die, we do offer a special socket die with an extended lip that works with both colored and clear sockets.