One pair of  8" foam surrounds suitable for the Jamo speaker including the 

                                                                                                                      PP 2304 , W20172 , W20506 , W20316 , W20711 , W20506W20175 , W20163 , C20WH-08 , 707 , JAMO COMPACT 90 , JAMO COMPACT 120 , COMPACT 90 , COMPACT 120 , JAMO 503 , JAMO 702 , JAMO 703 , JAMO 705 , JAMO CL25 , JAMO CL30 , CL20166 , CBR 902 , CBR 904 , CORONET 90 IV , CL-25 , D-32  , D-590 , DIGITAL 90 etc.

                          FITS ALL 8" FRAMES WITH 5 7/8" TO 6 1/8"  CONES.

Specifications are as follows.

                                                      OUTSIDE OF THE LIP   -  197mm

                                              OUTSIDE OF  THE BUMP     -  178mm

                                                   INSIDE OF  THE BUMP    -   150mm

                                                        INSIDE OF THE LIP     -   137mm

  THE ADHESIVE USED INTHE INDUSTRY TO GLUE FOAM SURROUNDS IS OF THE ACETATE FAMILY.IT IS SOLD COMMERCIALLY AS EITHER PVA ( WOOD GLUE ) OR AS EVA ( CRAFT GLUE ). IN THE UNITED STATES IT IS SOLD  COMMERCIALLY  AS ELMERS GLUE.