VACUUM TEST PLATES FOR ROBIN AIR VACUUM PUMP 6 PADS WITH BRASS FITTINGS - VALVE VALVE SEAT VACUUM TESTER COMPLETE KIT THIS KIT CONSIST OF :- SIX PADS OF DIFFERENT SIZES Round Of 6" WITH HOSE NOZZLE Round Of 5" WITH HOSE NOZZLE Round Of 3" WITH HOSE NOZZLE Round Of 2" WITH HOSE NOZZLE Rectangle 2" x 3" WITH HOSE NOZZLE Rectangle 3" x 4" WITH HOSE NOZZLE ALUMINUM ANODIZED PADS ALL PADS FACE ARE COVERED WITH CUSHION RUBBER TO MAKE GENTLE SURFACE CONTACT WITHOUT LEAKAGE FEEL FREE TO ASK ANY QUESTION ? THANKS !